Gonzales underwent flexor tendon repair surgery on his left forearm Friday, Andrew Destin of the Pittsburgh Post-Gazette reports.

Gonzales is expected to need 12 months before returning to play, meaning he could be sidelined for the entire 2025 campaign. The Pirates are expected to decline his $15 million team option for next season.

Manager Dave Roberts said Glasnow felt discomfort in his right elbow Friday while warming up for a simulated game, Fabian Ardaya of The Athletic reports.

Glasnow was slated to face live hitters for two or three simulated innings, but he instead returned to the clubhouse after warming up. The 31-year-old right-hander will get additional testing on his elbow to provide some clarity on his chances of returning before the end of the regular season, per Juan Toribio of MLB.com. Glasnow has been on the 15-day injured list since Aug. 16 due to tendinitis in his right elbow.

The Rockies optioned Gordon to Triple-A Albuquerque on Friday.

Gordon was called up to make a spot start Wednesday and yielded seven runs in 3.1 innings against the Tigers. He'll return to Albuquerque on Friday, giving way to Austin Gomber (paternity list) on the 26-man roster. Gordon has an 8.65 ERA in 34.1 innings for the Rockies this season.

Gomber was reinstated from the paternity list Friday. He'll start Friday's game against the Cubs.

As expected, Gomber will rejoin the team to make the start Friday. The left-hander has been impressive across his last five starts, logging a 3.00 ERA and a 1.06 WHIP with a 23:7 K:BB across 33 innings. Tanner Gordon was optioned to Triple-A Albuquerque in a corresponding move.

Glasnow didn't complete his scheduled simulated game Friday, Jack Harris of the Los Angeles Times reports.

Glasnow went straight to the clubhouse after warming up in the bullpen instead of facing hitters. It's unclear why he couldn't complete the session, but it doesn't bode well for his ability to return before the end of the regular season. Glasnow hasn't thrown for the Dodgers since Aug. 11 due to elbow tendinitis.

Hall is listed as the Brewers' starting pitcher for Sunday's game against the Diamondbacks at Chase Field, Jesse Friedman of GoPHNX.com reports.

Hall logged 5.2 innings across two relief appearances since joining the Brewers as a September call-up, and Sunday will mark his first start since he tossed seven scoreless frames in Cincinnati on Aug. 30. Hall has the potential to look excellent on the right day, but he's struggled to stay healthy for prolonged stretches while working as a traditional starter. Arizona's team .787 OPS against lefties ranks second in baseball behind Philadelphia (.800 OPS), so Hall will carry some risk as a streaming option.

Birdsong did not factor into the decision in a loss to the Brewers on Thursday, allowing two hits and one walk over five scoreless innings while striking out four.

Birdsong got off to a great start Thursday, allowing just one hit through the first four innings before being relieved in the sixth after throwing just 68 pitches. It marked the right-hander's first time going at least five innings since July 27 against the Rockies, which was also the last time that he collected a win. Additionally, it marked the first time in Birdsong's last five starts that he didn't issue multiple walks.

Montas (7-10) picked up the win over the Giants on Thursday, allowing two hits and two walks over six scoreless frames while striking out eight.

Montas stifled San Francisco's lineup, allowing just two batters to reach second base during his six innings on the mound. The right-hander generated 19 swings and misses en route to posting eight or more strikeouts for only the third time this season. It also marked Montas' second consecutive quality start to open the month, and he now carries a very strong 18:5 K:BB September to go along with a 2.25 ERA.

Greene (elbow) said Thursday that he felt good after throwing live batting practice Wednesday, MLB.com reports.

Greene threw about 25 pitches Wednesday and expects to throw a longer session Saturday. The Reds are hoping the right-hander can rejoin the rotation next week during the team's homestand.

Parker came away with a no-decision in Thursday's loss to the Marlins after he allowed two unearned runs on three hits and no walks over 6.1 innings. He struck out five.

Parker was fantastic Thursday, allowing only four baserunners and two unearned runs while pitching into the seventh inning for the seventh time this season. Parker has now recorded 11 quality starts in his rookie campaign, and five of those have come over his last eight starts. The 24-year-old hasn't missed a turn through the rotation since being called up in mid-April, and he's racked up 127 strikeouts with a 4.24 ERA over 142.1 innings.