MLB news, Tuesday, September 1, 2026
59 full Posterior articles, with the original source linked.
Orioles reportedly claiming Luis Robert Jr. off waivers from the Mets
Per SNY's Chelsea Janes, Baltimore is set to claim the outfielder off waivers, taking on roughly $2.99MM in remaining salary plus a 2026 option buyout.
Source · MLB Trade Rumors
Eugenio Suárez to miss two Reds games for US naturalization test
Eugenio Suárez will be absent from two Cincinnati Reds games to attend his US naturalization/citizenship test, per MLB.com.
Source · MLB.com
Colton Cowser robs Jake McCarthy of walk-off homer as Orioles edge Rockies 2-1
Baltimore's Colton Cowser reached over the center field wall in the ninth inning to rob Jake McCarthy of a walk-off home run, handing Colorado its fifth straight loss per Yahoo Sports.
Source · Yahoo Sports
Ketel Marte returns from IL and Restricted List as Diamondbacks fall to Phillies
Marte went 1-for-3 with a walk in his first game back, but a Bryce Harper RBI double proved the difference in a tight loss at Chase Field.
Source · Yahoo Sports
Ethan Salas reportedly called up to San Diego Padres roster
Per MLB.com, the Padres are promoting top prospect Ethan Salas to the MLB roster, though the move has not yet been described as a formal club announcement.
Source · MLB.com
Brewers expected to activate JoJo Romero, call up Bo Naylor on Sept. 1
Milwaukee is reportedly set to add LHP JoJo Romero and likely position player Bo Naylor as the September roster window opens, per Brew Crew Ball.
Source · Yahoo Sports
Yankees reportedly sign Jarred Kelenic to Triple-A Scranton/WB for playoff push
The Yankees reportedly added Jarred Kelenic on a minor-league deal to Triple-A Scranton/WB mid-week, per Yahoo Sports, as the RailRiders chase a playoff spot with three weeks left.
Source · Yahoo Sports
Braves select Blake Burkhalter and Kyle Farmer as September rosters expand
Atlanta added RHP Blake Burkhalter and infielder Kyle Farmer to its major league roster September 1, with Burkhalter making his MLB debut; Robert Suarez moved to the 60-day IL.
Source · MLB Trade Rumors
Nolan McLean posts 2.10 ERA in August, keeps NL Rookie of the Year case alive
Mets rookie Nolan McLean turned in another strong month with a 2.10 ERA in August, per Yahoo Sports, pushing his 2026 season ERA to 3.06 across 27 starts.
Source · Yahoo Sports
Ben Jacobs is rising fast in the Detroit Tigers system after mechanical gains
Tigers High-A lefty Ben Jacobs has posted a 34.4% strikeout rate and 3.50 ERA this season, per FanGraphs, with velocity now sitting 92-94 mph after mechanical improvements.
Source · FanGraphs
Jedixson Paez promoted by Red Sox to start Tuesday vs. Seattle in Boston debut
Boston selected the contract of righty Jedixson Paez from Triple-A Worcester; he is slated to start Tuesday against the Mariners in his Red Sox debut, per the club's announcement.
Source · MLB Trade Rumors
Rangers sign Trevor Williams to major league deal for bullpen role
Texas signed RHP Trevor Williams after Washington released him this week; per the club announcement, he joins the Rangers bullpen, with postseason eligibility reportedly in play.
Source · MLB Trade Rumors
Twins designate Kyler Fedko for assignment, add Ben Ross and Garrett Acton
Minnesota designated outfielder Kyler Fedko for assignment, per a club announcement, clearing a 40-man spot for infielder Ben Ross and recalling Garrett Acton from Triple-A St. Paul.
Source · MLB Trade Rumors
Rangers sign veteran pitcher Trevor Williams
The Texas Rangers have signed veteran pitcher Trevor Williams, per MLB.com, as the club sits at 70-73 and 2.0 games outside the Wild Card cut line.
Source · MLB.com
Red Sox activate Isiah Kiner-Falefa from IL as September roster expansion begins
MLB.com reports Boston has activated Isiah Kiner-Falefa from the injured list and called up Jedixson Paez as part of September roster expansion.
Source · MLB.com
Orioles reportedly call up Cade Povich to push rotation back a day
Baltimore reportedly called up Cade Povich to push its rotation back a day amid starter workload concerns, per Yahoo Sports. No club announcement has been made.
Source · Yahoo Sports
Padres call up catching prospect Ethan Salas for September stretch run
San Diego reportedly called up 20-year-old catcher Ethan Salas for the September stretch run, per CBS Sports, as the club sits at 74-68 in the NL wild-card race.
Source · CBS Sports
Ethan Salas called up by Padres as club's No. 1 prospect reaches MLB
San Diego has called up 20-year-old catcher Ethan Salas, the organization's top prospect, to the major league roster, per MLB.com.
Source · MLB.com
Heston Kjerstad called up by Orioles as September roster expansion begins, per sources
Baltimore is reportedly calling up outfielder Heston Kjerstad as part of September roster expansion; left-hander De León, MLB.com's No. 7 prospect, is also expected to join the club.
Source · MLB.com
White Sox designate Tyler Gilbert for assignment to clear 40-man spot for Tommy Pham
Chicago designated LHP Tyler Gilbert for assignment Tuesday, opening a 40-man roster spot for newly acquired OF Tommy Pham as September rosters expand to 28.
Source · MLB Trade Rumors
Arte Moreno agrees to sell Angels to Rams owner Stan Kroenke for record sum
Arte Moreno has reportedly agreed to sell the Angels to Stan Kroenke for a sum exceeding $3.9B, per the L.A. Times, though the final price has not been disclosed.
Source · MLB Trade Rumors
Orioles to promote Luis De León as September roster expansion begins
Baltimore is calling up pitching prospect Luis De León, per The Baltimore Banner, as part of a broader roster shuffle tied to the September 1 expansion to 28 active players.
Source · MLB Trade Rumors
Ethan Salas reportedly called up by San Diego Padres
Baseball Prospectus reports Ethan Salas is being called up by the Padres; no club announcement has accompanied the report.
Source · Baseball Prospectus
Ethan Salas reportedly called up to the majors by the San Diego Padres
Baseball Prospectus reported that Ethan Salas appears to have been called up to the Padres, though the club has not announced the move.
Source · Baseball Prospectus
Stan Kroenke reaches agreement to purchase Angels from Arte Moreno
LA Rams owner Stan Kroenke has agreed to buy the Angels from Arte Moreno, per MLB.com — terms were not disclosed and league approval remains pending.
Source · MLB.com
Will Smith activated from injured list, returns to Dodgers roster
MLB.com announced Dodgers catcher Will Smith has been activated from the injured list and returned to the roster, along with pitchers Rushing and Wrobleski.
Source · MLB.com
Nick Lodolo's recurring blister casts doubt on his Tuesday start for the Reds
Nick Lodolo is Cincinnati's probable starter Tuesday against San Diego, but a recurring blister tied to his breaking ball grip has sent him to the IL twice this season, per Yahoo Sports.
Source · Yahoo Sports
Cardinals prospect catcher Leo Bernal promoted to MLB roster amid flurry of moves
St. Louis called up catching prospect Leo Bernal as part of multiple roster moves, per MLB.com, with Scott II and Rincon also recalled and Crooks optioned.
Source · MLB.com
Blue Jays designate Daz Cameron for assignment in September roster expansion
Toronto designated outfielder Daz Cameron for assignment as part of September roster moves; his next destination remains unresolved within the 7-day window.
Source · MLB Trade Rumors
Reds reinstate Brandon Williamson from 60-day IL, starter set for Wednesday start
Cincinnati reinstated LHP Brandon Williamson from the 60-day IL per a team announcement, ending an absence since April; his ERA in six rehab appearances was 5.94.
Source · MLB Trade Rumors
Lazaro Montes called up by Seattle Mariners as September roster window opens
MLB.com reported the Mariners have called up prospect Lazaro Montes to the major league roster; further roster details were not announced.
Source · MLB.com
Mets recall RHP Dylan Ross from Triple-A Syracuse for MLB debut
The Mets recalled right-hander Dylan Ross and outfielder Nick Morabito as part of September roster expansion, per a club announcement; Ross will make his MLB debut when he enters a game.
Source · MLB Trade Rumors
Freddy Peralta starts Tuesday for Tampa Bay against the Mets who traded him
Rays starter Freddy Peralta faces his former club Tuesday at Tropicana Field, approximately one month after reportedly being traded from New York to Tampa Bay, per CBS Sports.
Source · CBS Sports
Blake Walston reinstated by Diamondbacks from 60-day IL as rosters expand to 28
Arizona reinstated LHP Blake Walston from the 60-day IL on September 1, per the club's announcement; he is expected to join the bullpen after missing most of two seasons.
Source · MLB Trade Rumors
Diamondbacks reinstate Blake Walston from 60-day IL as September roster expands
Arizona reinstated LHP Blake Walston from the 60-day injured list on September 1, adding him to the bullpen; his role beyond short stints remains unconfirmed.
Source · MLB Trade Rumors
Adley Rutschman out of Red Sox lineup again with elbow issue that may last all season
MLB.com reports Rutschman is out of Boston's lineup again with an elbow problem that could persist through the rest of the season; no timetable or IL move has been announced.
Source · MLB.com
Rays activate Victor Mesa Jr. from injured list ahead of September roster expansion
Tampa Bay activated Victor Mesa Jr. from the injured list, per MLB.com, as the Rays enter September at 85-57 and leading the AL East.
Source · MLB.com
Isiah Kiner-Falefa activated by Red Sox as Jedixson Paez earns call-up
Boston activated Isiah Kiner-Falefa from the injured list and called up Jedixson Paez, per MLB.com, while Guerrero was placed on the IL with a right shoulder issue.
Source · MLB.com
Giants select LHP Cesar Perdomo as active rosters expand to 28
The Giants announced the selection of left-hander Cesar Perdomo from Triple-A Sacramento and the recall of catcher Zach Morgan as September roster expansion took effect.
Source · MLB Trade Rumors
Blue Jays recall Ricky Tiedemann, Sean Keys, activate Mantiply and Smith for September
Toronto recalled Tiedemann and Keys from the minors as part of September roster expansion, per MLB.com, while lefty reliever Mantiply and utility man Smith were also activated.
Source · MLB.com
Blue Jays recall Ricky Tiedemann, Sean Keys as September roster expands
Toronto recalled RHP Ricky Tiedemann and Sean Keys from the minors, with lefty reliever Mantiply and utility man Smith also activated, per MLB.com.
Source · MLB.com
Brandon Williamson activated by Reds, set to start Wednesday vs. Padres
The Reds activated LHP Brandon Williamson from the 60-day IL on September 1, with the left-hander slotted to start Wednesday against San Diego.
Source · MLB.com
Riley Greene activated off IL and returns to Tigers lineup
MLB.com reports Riley Greene has been activated off the injured list and is back in Detroit's lineup, which has struggled in his absence.
Source · MLB.com
CJ Abrams returns to Nationals lineup at SS vs. Braves after back tightness
Abrams is back in Washington's starting lineup at shortstop against Atlanta after missing time with back tightness, per MLB.com.
Source · MLB.com
Carlos Hernández recalled by Cleveland Guardians after offseason car accident
MLB.com reports Hernández has rejoined the Guardians roster following recovery from an offseason car accident; Schneemann was also recalled as September rosters expanded.
Source · MLB.com
Carlos Estévez out for rest of 2026 season after shoulder surgery
MLB.com reported that Royals reliever Carlos Estévez will miss the remainder of 2026 following shoulder surgery after an unsuccessful rehab stint.
Source · MLB.com
Carlos Correa ramping up rehab, targeting return to Astros in 2026
MLB.com reports Correa is stepping up his rehab program and aiming to return to Houston this season after an injury absence; no timetable has been announced.
Source · MLB.com
Will Smith activated from injured list by Los Angeles Dodgers
MLB.com reported the Dodgers activated catcher Will Smith from the IL, with Rushing and Wrobleski also returning to the roster.
Source · MLB.com
Rangers sign LHP John King to minor league deal after Miami release
Texas has reportedly brought back lefty John King on a minor league contract; per the report, he is a long shot for any postseason roster spot if the Rangers qualify.
Source · MLB Trade Rumors
Rangers sign RHP Trevor Williams, who starts Friday vs. Rays
Texas signed veteran right-hander Trevor Williams, per MLB.com, with teammate MacKenzie Gore reportedly supportive; Williams is slated to start Friday against Tampa Bay.
Source · MLB.com
Darren Baker reportedly signing minor league deal with Giants
Darren Baker is reportedly set to sign a minor league contract with San Francisco, per MLB.com — terms and any potential roster role remain unconfirmed.
Source · MLB.com
Luis Robert Jr. acquired by Baltimore Orioles, expresses eagerness to contribute
MLB.com reports Luis Robert Jr. has been acquired by the Baltimore Orioles, with the outfielder expressing excitement about joining the club's postseason push.
Source · MLB.com
Joe Ryan makes rehab start with Triple-A St. Paul, not yet active for Twins
Joe Ryan pitched on a rehab assignment with Triple-A St. Paul, per MLB.com, as he works back from injury with no return timetable reported.
Source · MLB.com
Lazaro Montes called up by Mariners, debuts with first career hit and home run
Seattle called up outfielder Lazaro Montes, who marked his MLB debut with his first career hit and home run, per MLB.com.
Source · MLB.com
Reds sign Orlando Arcia to minor league deal, assign him to Triple-A Louisville
Cincinnati reportedly signed veteran infielder Orlando Arcia to a minor league contract and assigned him to Triple-A Louisville, per MLB Trade Rumors.
Source · MLB Trade Rumors
Yankees to piggyback Max Fried with Will Warren vs. Padres on Friday
New York will use a piggyback arrangement with Max Fried and Will Warren when the Yankees face San Diego at Petco Park on Friday, per MLB.com.
Source · MLB.com
Victor Mesa Jr. activated by Rays, contributes immediately upon return
Tampa Bay activated Victor Mesa Jr. from the injured list, per MLB.com, and he made an impact right away; the Rays hold a division magic number of 18.
Source · MLB.com
Adley Rutschman out of Red Sox lineup with elbow issue that may last all season
MLB.com reports Rutschman is out of Boston's lineup again with an elbow issue that may persist through the rest of the season; no timetable or roster move has been announced.
Source · MLB.com
Carlos Estévez to undergo shoulder surgery next week, Royals manager says
Royals closer Carlos Estévez will have shoulder surgery next week for a rotator cuff strain after a failed rehab attempt, per MLB.com's Anne Rogers; a timeline is expected after the procedure.
Source · MLB Trade Rumors