Giants claim Joel Kuhnel off waivers from the Brewers

What happened

The San Francisco Giants claimed right-hander Joel Kuhnel off waivers from the Milwaukee Brewers, per Adam McCalvy of MLB.com. Milwaukee had designated Kuhnel for assignment earlier this week. Because San Francisco carried a full 40-man roster at the time of the claim, the club needed to create a corresponding roster spot — and per Susan Slusser of The San Francisco Chronicle, that move turned out to be catcher Jesús Rodríguez transferring to the 60-day injured list.

Rodríguez had been on the 10-day IL since August 1 with right elbow neuritis. The transfer to the 60-day IL, Slusser reports, signals that the Giants do not expect him back this season, as his 60-day period would extend beyond the end of the schedule.

Why it matters

The Rodríguez development is the quieter but more consequential piece of this transaction. A 60-day IL placement removes a player from the 40-man roster count, which is precisely what San Francisco needed to absorb Kuhnel. The Giants had also reportedly considered transferring infielder Marcelo Mayer to the 60-day IL — MLB.com noted he had already been shelved longer than that threshold — but the Rodríguez route was ultimately the corresponding move, per Slusser.

Kuhnel's situation adds a layer of operational specificity that makes this more than a standard waiver claim. He is out of options, meaning he cannot be sent to the minors without first clearing waivers. When he reports to San Francisco, he will need an active roster spot on the 28-man September roster. There is no parking him in Triple-A while the club figures things out. He is, in the parlance of roster construction, a permanent resident of the big-league clubhouse for the remainder of the year.

The numbers

The Giants enter Friday at 59-84 (.413), sitting 4th in the NL West, 26 games back in the division, and already eliminated from the division race. In the Wild Card picture, they rank 11th, 16.0 games relative to the cut line. They arrive at Citi Field riding a one-game winning streak, which is the kind of streak that earns exactly one sentence of acknowledgment.

Where the club stands

San Francisco opens a series at the New York Mets on Friday, September 4, with Matt Wilkinson listed as the probable starter against Nolan McLean. The club returns to Citi Field on Saturday, September 5, where Anthony Molina is slated to face Zac Thornton. Sunday, September 6 features Cesar Perdomo — who was selected from Triple-A as part of roster expansion earlier this week — opposing Christian Scott.

That Perdomo is already penciled into a rotation spot speaks to where the Giants are in their September: this is an audition month as much as a competitive one, and the roster moves reflect that reality. The club called up Perdomo as part of the expansion to 28 players, a window that opened September 1 under general league rules. Kuhnel steps into a bullpen that has been in active flux throughout the final stretch.

A well-traveled arm

Kuhnel, 31, has made stops with the Reds, Astros, Rays, Athletics, and Brewers over the past several years before landing in San Francisco. MLB.com notes he carries a ground-ball profile, though the report was cut short before elaborating further — so the desk will leave it there rather than invent a completion. What is clear is that he has navigated a journeyman's path through the league, and waiver claims in September are a familiar chapter in that kind of career.

The Giants' waiver wire activity this week has been notable. A few days before the Kuhnel claim, San Francisco claimed infielder Brett Harris off waivers from the Red Sox and optioned him to Triple-A — a move that was possible because Harris, unlike Kuhnel, still has options remaining. The contrast between the two claims illustrates how differently the same transaction type can play out depending on a player's option status.

What we don't know yet

No detail has been reported on what role Kuhnel will fill in the Giants' bullpen, how quickly he will be available after reporting, or what his workload might look like down the stretch. The Rodríguez injury timeline is also worth monitoring: Slusser's report indicates the Giants do not expect him back this year, but no further detail on his condition beyond the right elbow neuritis diagnosis from August 1 has been reported.

It also remains to be seen whether the Marcelo Mayer 60-day IL transfer — floated in MLB.com's report as a possible corresponding move — is still on the table for any future roster need, or whether the Rodríguez transfer resolves the 40-man situation entirely for now.

What to watch

The immediate question is when Kuhnel joins the active roster and how San Francisco deploys him in the final weeks of the season. With the club eliminated from the division race and sitting well outside the Wild Card picture, these September games carry more weight as evaluation opportunities than as playoff positioning. A right-hander with a ground-ball tendency and no minor-league assignment available is, at minimum, a known quantity in the bullpen — and for a team working through its September roster, known quantities have their own value.

Perdomo's Sunday start against the Mets will also be worth watching as the Giants continue to sort through what their pitching picture looks like heading into the offseason. The roster is in motion, the schedule is winding down, and the waiver wire, as ever, remains open for business.