MLB news, Monday, August 31, 2026
44 full Posterior articles, with the original source linked.
Buster Posey says Tony Vitello will return as Giants manager in 2027
Giants president Buster Posey told two San Francisco reporters that Vitello is expected back as manager next season despite a 56-81 record in his debut.
Source · MLB Trade Rumors
Elly De La Cruz exits Reds game early with quad tightness, evaluation scheduled for Monday
Elly De La Cruz departed a Reds game early with quadriceps tightness; MLB.com reports an evaluation is scheduled for Monday. No diagnosis or roster move has been announced.
Source · MLB.com
Lazaro Montes reportedly called up by Mariners ahead of Tuesday's game in Boston
The Mariners are expected to call up OF prospect Lazaro Montes for Tuesday's game in Boston, per Francys Romero and MLB.com's Daniel Kramer, as rosters expand to 28.
Source · Yahoo Sports
Cardinals to promote Leo Bernal from Triple-A Memphis on Tuesday
St. Louis is reportedly calling up catching prospect Leo Bernal ahead of September roster expansion, though a corresponding move may still be needed, per Francys Romero.
Source · MLB Trade Rumors
Byron Buxton placed on the IL again with a hip injury, per Yahoo Sports
Byron Buxton is reportedly back on the injured list with a hip injury, per Yahoo Sports, continuing what the outlet describes as an injury-plagued season.
Source · Yahoo Sports
Walker Jenkins called up by Twins as Byron Buxton sits with hip impingement
Minnesota called up top prospect Walker Jenkins after Byron Buxton was sidelined by a hip impingement with no timetable for return, per FanGraphs.
Source · FanGraphs
Tigers to select John Peck, infield prospect, from Triple-A Toledo
Detroit is calling up infield prospect John Peck from Triple-A Toledo, per Baseball America's Emily Waldon, with both 26-man and 40-man roster moves still required to formalize the selection.
Source · MLB Trade Rumors
Devin Williams begins throwing program during difficult Mets debut season
Devin Williams has started a throwing program, per MLB.com, as the reliever works through an injury that has shadowed his first season with New York.
Source · MLB.com
Devin Williams begins throwing program amid difficult 2025 Mets debut season
Devin Williams has started a throwing program, per MLB.com, as the reliever works through an injury that has shadowed his first season with the New York Mets.
Source · MLB.com
Tristan Peters homers in 5 straight games for the White Sox, going 10-for-18 with 9 RBI
Peters, a center fielder who entered 2026 without a major-league hit, reportedly homered in five consecutive games (Aug. 22–26) and landed on the AL All-Star team, per FanGraphs.
Source · FanGraphs
Ketel Marte reportedly set to be activated by Arizona Diamondbacks ahead of Monday's game
Per Francys Romero, the Diamondbacks are expected to activate second baseman Ketel Marte from the 10-day IL ahead of Monday's game against Philadelphia.
Source · Yahoo Sports
Nationals release Trevor Williams after he clears waivers unclaimed
Washington released RHP Trevor Williams after he passed through waivers without a claim, per MLB.com's transaction log, closing his second two-year deal with the Nationals.
Source · MLB Trade Rumors
Luis Robert Jr. claimed by Baltimore Orioles off waivers from New York Mets
The Orioles claimed outfielder Luis Robert Jr. off waivers from the Mets, per MLB.com, adding lineup pop to a club five games into a losing streak.
Source · MLB.com
Yankees claim reliever John Schreiber off waivers to add bullpen depth
The New York Yankees claimed reliever John Schreiber off waivers, per MLB.com, adding depth to a bullpen as the club sits atop the AL Wild Card standings.
Source · MLB.com
Yankees claim reliever John Schreiber off waivers to bolster bullpen depth
The New York Yankees claimed reliever John Schreiber off waivers, per MLB.com, adding a bullpen arm as the club sits atop the AL Wild Card standings.
Source · MLB.com
Willson Contreras placed on injured list by Red Sox with hamstring strain
The Red Sox placed catcher Willson Contreras on the injured list with a hamstring strain, per MLB.com, as Boston enters a home series against Seattle sitting second in the AL Wild Card.
Source · MLB.com
Orioles DFA Luis Vázquez to make room for Luis Robert Jr.
Baltimore designated infielder Luis Vázquez for assignment Monday, clearing a 40-man spot for outfielder Luis Robert Jr., whose waiver claim the club also announced.
Source · MLB Trade Rumors
White Sox acquire OF Jake Cave from Rays for cash
Tampa Bay traded outfielder Jake Cave to Chicago for cash, per Marc Topkin of the Tampa Bay Times; Cave was on a minor league deal and reportedly remains postseason-eligible.
Source · MLB Trade Rumors
Luis Robert Jr. claimed off waivers by Baltimore Orioles, ending Mets stint
The Baltimore Orioles claimed Luis Robert Jr. off waivers from the New York Mets, MLB.com reported, concluding what the outlet described as a brief tenure in New York.
Source · MLB.com
Luis Robert Jr. claimed off waivers by Baltimore Orioles from New York Mets
The Baltimore Orioles claimed Luis Robert Jr. off waivers from the New York Mets, per MLB.com, adding lineup pop to a club five games into a losing streak.
Source · MLB.com
Willson Contreras goes to 10-day IL with left hamstring strain
The Red Sox announced Monday that Contreras, Boston's leading home run hitter, is on the 10-day IL with a left hamstring strain reportedly present for weeks.
Source · Yahoo Sports
Tommy Pham traded to White Sox from Phillies as Chicago bolsters outfield depth
The White Sox received outfielder Tommy Pham from the Philadelphia Phillies in a trade, per MLB.com, as the AL Central leaders at 74-68 deepen their outfield.
Source · MLB.com
Luis Robert Jr. claimed off waivers by Baltimore, ending his Mets tenure
The Orioles claimed Luis Robert Jr. off waivers from the Mets, per MLB.com, with New York set to activate No. 13 prospect Morabito in a corresponding move.
Source · MLB.com
Willson Contreras placed on IL with hamstring injury; Red Sox recall Gasper
Boston placed catcher Willson Contreras on the injured list with a hamstring injury, per MLB.com, and recalled outfielder Gasper in a corresponding move.
Source · MLB.com
Ketel Marte returns to Arizona Diamondbacks lineup, batting cleanup vs. Phillies
Ketel Marte is back in the D-backs lineup for Monday's series opener against Philadelphia, slotting into the cleanup spot, per MLB.com.
Source · MLB.com
Red Sox giving Sonny Gray extra rest ahead of stretch run
Boston is adjusting its rotation usage to give Sonny Gray additional rest, per MLB.com, as the Red Sox push toward the postseason with details still unconfirmed.
Source · MLB.com
Xavier Edwards placed on IL with sprained left thumb; INF Serna recalled by Marlins
Miami Marlins infielder Xavier Edwards has been placed on the injured list with a sprained left thumb, per MLB.com, with INF Serna recalled to fill the roster spot.
Source · MLB.com
CJ Abrams scratched from Monday's game vs. Marlins with back tightness
The Nationals shortstop did not play Monday against Miami due to back tightness, per MLB.com; no timetable or further diagnosis has been reported.
Source · MLB.com
Luis Rengifo (torn ACL) to undergo surgery, out for remainder of 2026 season
MLB.com reported the Padres announced Rengifo sustained a torn ACL and will undergo surgery, ending his 2026 season with San Diego 0.5 games outside the Wild Card cut line.
Source · MLB.com
BJ Murray Jr. called up by Cubs on Tuesday as September roster expansion begins
MLB.com reports the Cubs are calling up No. 19 prospect BJ Murray Jr. on Tuesday, with Chicago sitting atop the NL Wild Card at 81-62.
Source · MLB.com
Ketel Marte returns to Diamondbacks after restricted list stint and knee IL
Ketel Marte is back with Arizona after being placed on the restricted list Aug. 17 for not joining the team, then moving to the IL with a knee issue, per CBS Sports.
Source · CBS Sports
Abner Uribe activated off injured list by Brewers ahead of Cubs rivalry series
Milwaukee activated setup man Abner Uribe off the injured list, per MLB.com, as the Brewers open a three-game series at Wrigley Field with a division magic number of 13.
Source · MLB.com
White Sox reliever Jordan Leasure undergoes UCL surgery, to miss all of 2027
The White Sox announced that reliever Jordan Leasure underwent UCL reconstructive surgery; per the announcement, he is expected to miss the entire 2027 season and return for Spring Training 2028.
Source · MLB Trade Rumors
Luis Robert Jr. claimed by the Orioles off waivers from the Mets
The Orioles claimed outfielder Luis Robert Jr. off waivers from the Mets, per MLB.com, with roster construction details not yet announced.
Source · MLB.com
Woo-Suk Go elects free agency after Twins DFA, unclaimed on waivers
Woo-Suk Go went unclaimed on waivers and elected free agency, per the MiLB.com transaction log, after Minnesota designated him for assignment to open a spot for Walker Jenkins.
Source · MLB Trade Rumors
Riley Greene set to return to Tigers lineup Tuesday after injury absence
MLB.com reports Riley Greene is expected back in Detroit's lineup Tuesday; the Tigers sit 65-77, 6.5 games outside the Wild Card cut line.
Source · MLB.com
Elly De La Cruz returns as DH after exiting Sunday with quadriceps tightness
Elly De La Cruz left a Reds game early with quadriceps tightness but was back in the lineup as designated hitter the following day, per MLB.com.
Source · MLB.com
Angels' Mozeliak announces promotions of Swanson, Lord and scouting restructure
Angels president John Mozeliak announced promotions for Swanson and Lord alongside a scouting department restructure, per MLB.com.
Source · MLB.com
Aaron Judge could return during next Yankees homestand, Boone says
Yankees manager Aaron Boone said Judge's return during the next homestand is possible, though Judge remains out and no timetable has been announced.
Source · MLB.com
Aaron Judge could return during Yankees' next homestand, Boone says
Yankees manager Aaron Boone said a return for Aaron Judge during the next homestand is possible, though Judge remains out and no timetable has been announced.
Source · MLB.com
Dylan Lee suspects pitch tipping is behind his second-half struggles
Braves reliever Dylan Lee told MLB.com he believes pitch tipping may explain his second-half performance dip, though the cause remains his own suspicion.
Source · MLB.com
Mets promote 2025 third-round pick Aiden Robbins to High-A Brooklyn
Aiden Robbins, the Mets' 2025 third-round pick, has been promoted to High-A Brooklyn after a .286 average, four home runs, and a .826 OPS over 20 games at Low-A St. Lucie.
Source · Yahoo Sports
Padres to promote Ethan Salas, who would become the youngest player in MLB
San Diego is calling up 20-year-old catching prospect Ethan Salas, per Kevin Acee of The San Diego Union-Tribune, a move that would make him the youngest player in the big leagues.
Source · MLB Trade Rumors
Denzel Clarke nearing return to Athletics after injury absence
Clarke is reportedly close to rejoining the Athletics' outfield, per MLB.com, though no specific timeline or roster move has been announced.
Source · MLB.com