Blach will be recalled from Triple-A Albuquerque and draw the start in Sunday's series finale against the Orioles, Patrick Lyons of JustBaseball.com reports.

Blach will take the spot of Cal Quantrill, who was scratched from his scheduled start due to right triceps inflammation. Blach was DFA'd by Colorado in late July after posting a 6.36 ERA and 1.70 WHIP across 63.2 innings, but he opted to stay within the organization at the Triple-A level rather than enter free agency. He'll now rejoin the big club and could stick around in the rotation if Quantrill misses extended time.

Williamson (shoulder) will be activated from the 60-day injured list to start in Sunday's game against the Brewers, Charlie Goldsmith of The Cincinnati Enquirer reports.

Williamson has been on the shelf all season after suffered a shoulder injury in spring training. He began a rehab assignment in May, but he was pulled off of it in early June after being diagnosed with a Bennett lesion in his left shoulder. Williamson opted to treat the injury with injections rather than season-ending surgery, and after a lengthy shutdown period, he finally resumed his rehab assignment with Triple-A Louisville on Tuesday, tossing 50 pitches over 2.2 scoreless innings. The Reds apparently saw enough from Williamson in that outing to bring him back from the IL, but he's still expected to be operated on a limited pitch count as he toes the rubber for the big club for the first time Sunday. Williamson could need two outings before he's fully stretched out to handle a typical starter's workload. As a rookie with Cincinnati in 2023, Williamson posted a 5-5 record with a 4.46 ERA, 1.28 WHIP and 98:39 K:BB over 117 innings.

Quantrill will not start in Sunday's series finale against the Orioles due to right triceps inflammation, Patrick Lyons of JustBaseball.com reports.

Quantrill made his last start Tuesday against the Marlins, when he allowed four runs on seven hits and five walks while striking out two across 5.2 innings in a no-decision. The 29-year-old right-hander has struggled over his seven starts since the All-Star break, posting a 2-2 record with a 6.06 ERA, 1.63 WHIP and 25:18 K:BB over 35.2 innings. It's unclear whether the triceps injury will keep him out of his next start, which is pencilled in for Sept. 7 against the Brewers. Southpaw Ty Blach will be recalled from Triple-A Albuquerque and start Sunday.

Buchanan allowed one run on two hits and two walks while striking out one over 3.1 innings Saturday versus the Brewers. He did not factor in the decision.

The Reds' pitching plans were not officially announced before the contest, and this amounted to a bullpen game for the team. Buchanan logged the most innings of any of the five pitchers the team deployed, and he threw 33 of 58 pitches for strikes in his first big-league outing since 2015. He maintained a 4.91 ERA and 1.49 WHIP over 102.2 innings with Triple-A Lehigh Valley this year before he was traded to the Reds on Tuesday. Buchanan started 16 of his 22 appearances at Triple-A, and there could be room for him to make a spot start or another long-relief appearance while Cincinnati's rotation is shorthanded. If he gets another outing, he'd be on schedule to pitch in next weekend's series against the Mets at Citi Field.

Montas allowed four runs on seven hits and three walks while striking out four over six innings in a no-decision versus the Reds on Saturday.

Facing his former team, Montas had a middling start. He allowed a two-run single to Spencer Steer in the fifth inning and a game-tying, two-run home run to Amed Rosario in the sixth. Montas has allowed four runs in back-to-back starts and has just one quality start in six outings since the Reds traded him to the Brewers. The right-hander has compiled a 4.70 ERA, 1.39 WHIP and 110:54 K:BB over 126.1 innings across 25 starts between the two teams this year. His next start is projected to be at home versus the Rockies.

Wheeler (13-6) allowed four hits and struck out seven without walking a batter over seven shutout innings to earn the win over Atlanta on Saturday.

Wheeler twirled a gem for his 100th career win, and he rattled off his sixth straight quality start in the process. He finally had a month where he avoided a poor start -- over six outings in August, Wheeler posted a 1.62 ERA and 44:5 K:BB over 39 innings. Through 27 starts this year, Wheeler has a 2.63 ERA, 0.98 WHIP and 183:45 K:BB over 167.2 innings, numbers that should have him firmly in the NL Cy Young discussion. He's projected for a favorable start at Miami his next time out.

Fried (8-8) allowed three runs on five hits and four walks while striking out four over seven innings to take the loss versus Philadelphia on Saturday.

Fried has walked three or more batters in four of his six starts since returning from a forearm injury. This was his second quality start in that span, though he gave up two solo home runs and an RBI double. The southpaw is now at a 3.52 ERA, 1.21 WHIP and 130:50 K:BB over 140.2 innings over 24 starts this season, but he posted a mediocre 4.96 ERA across 32.2 innings in August. His next start is projected to be at home versus the Blue Jays.

Triple-A Indianapolis placed Ashcraft on its 7-day injured list Saturday due to a right forearm injury, per MLB.com.

It marks the third time since June 28 that Ashcraft has landed on the injured list. The last time he was on the IL was due to right elbow inflammation that caused him to miss a month and a half. He had just returned Friday, pitching one inning.

Vasquez (4-7) took the loss against the Rays on Saturday, allowing nine runs on 11 hits and four walks with three strikeouts over 4.1 innings.

Vasquez was staked an early 2-0 lead but yielded a career-high nine earned runs despite allowing just one home run. Over his last 10 starts, the 25-year-old has allowed three earned runs or fewer eight times but also surrendered 15 total earned runs in two disastrous outings. On the season, he owns a 5.18 ERA, 1.59 WHIP and 58:28 K:BB across 92 innings and lines up to face the Giants at home next weekend.

Ryan (elbow) underwent successful Tommy John surgery Aug. 25, per MLB.com.

Ryan suffered a UCL strain in a start against Pittsburgh on Aug. 11. The right-hander has a small chance of returning to action late in 2025, but he'll more likely need to wait until 2026 to toe a major-league mound again.