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Chase Burns SP | CIN
Reds' Chase Burns: Cruises to 13th win
Burns (13-1) notched the win Sunday against the Pirates, allowing one run on two hits and two walks in six innings. He struck out nine.
Pittsburgh managed to scratch a run across in the fourth inning, but Burns was his usual dominant self otherwise Sunday. The first-time All-Star has now fanned at least six in 15 of his 21 starts this season, and he's remarkably worked at least five innings while giving up two runs or fewer in all but three of his outings. Burns has an exceptional 2.35 ERA, 1.10 WHIP and 137:43 K:BB over 118.2 innings, but he has a tough test in Washington lined up for his next appearance.
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Peter Lambert SP | HOU
Astros' Peter Lambert: Fans eight in no-decision
Lambert did not factor into the decision Sunday against the Rangers, allowing two runs on three hits and two walks while striking out eight over 5.2 innings.
Lambert was perfect through his first four innings, piling up seven strikeouts before Texas finally broke through. In the fifth, the right-hander allowed four consecutive baserunners to begin the inning, resulting in the only two runs charged to him. Lambert has now held opponents to two runs or fewer in 11 of his last 12 starts while posting a 2.63 ERA during that stretch. He's scheduled to make his next start Saturday against the Padres.
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Mitch Keller SP | PIT
Pirates' Mitch Keller: Shelled in eighth loss
Keller (6-8) took the loss Sunday against the Reds, allowing seven runs on six hits and four walks in two innings. He struck out two.
Keller lacked both control and command Sunday, tying a season high in walks and serving up a pair of home runs. The seven runs allowed matched a season worst for the right-hander, who also turned in his shortest outing of the season while recording his second-fewest strikeouts of the campaign. Keller will be trying to pick up the pieces his next time out against the reeling Mets, holding a 5.29 ERA, 1.37 WHIP and 89:42 K:BB over 115.2 innings.
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Landen Roupp SP | SF
Giants' Landen Roupp: Charged with 10th loss
Roupp (7-10) took the loss Sunday, allowing five runs on six hits and four walks over 4.2 innings against the Padres. He struck out six.
Roupp was done in by a four-run second inning, surrendering a two-run homer to Jackson Merrill while walking three batters during the frame. The right-hander has taken a step back over his past two starts, allowing four runs and taking the loss in both outings. Sporting a 4.34 ERA, 1.29 WHIP and 120:52 K:BB across 118.1 innings (22 starts), Roupp will look to get back on track next weekend against the Tigers.
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Kumar Rocker SP | TEX
Rangers' Kumar Rocker: Allows 10 hits in no-decision
Rocker did not factor into the decision Sunday against the Astros, allowing three runs on 10 hits and two walks while striking out five over 5.1 innings.
Rocker threw 59 of his 88 pitches for strikes and generated 15 whiffs despite allowing a season-high 10 hits. The biggest blow came in the fourth inning, when Jeremy Pena launched a two-run homer. The right-hander has now issued multiple walks in four straight starts, posting a 4.56 ERA during that stretch. For the season, Rocker owns a 4.08 ERA, 1.33 WHIP and 98:40 K:BB across 108 innings. His next start is scheduled for Saturday against the Orioles.
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Merrill Kelly SP | ARI
Diamondbacks' Merrill Kelly: Tagged for five runs in loss
Kelly (8-9) took the loss Sunday against the Guardians, allowing five runs on eight hits and four walks while striking out five over five innings.
Kelly surrendered a leadoff solo homer to Patrick Bailey in the third inning as part of a two-run frame. The right-hander ran into more trouble in the fifth, when five consecutive Cleveland batters reached safely, resulting in three more runs. Arizona's offense offered no support, as the Diamondbacks were shut out in the defeat. The four walks matched Kelly's highest total since April 28. He'll carry a 5.04 ERA, 1.49 WHIP and 76:46 K:BB over 114.1 innings into his next scheduled start Friday against the Dodgers.
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Griffin Canning SP | SD
Padres' Griffin Canning: Credited with third win
Canning (3-9) earned the win Sunday against San Francisco. He allowed one run on two hits and no walks without recording a strikeout over two innings of relief.
The right-hander was the third pitcher used by San Diego, and despite covering just two innings while surrendering a solo homer to Osleivis Basabe (forearm), Canning was credited with the win. He has struggled mightily this season in both starting and relief roles, posting a 6.58 ERA, 1.55 WHIP and 67:32 K:BB across 67 innings (17 appearances). The 30-year-old's spot on the roster could come into jeopardy if the Padres make any moves to bolster their pitching staff before Monday's trade deadline.
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Tyler Mahle SP | ATL
Braves' Tyler Mahle: Dealt to Atlanta
Atlanta acquired Mahle from San Francisco on Sunday in exchange for right-hander Anthony Molina, Ken Rosenthal of The Athletic reports.
Mahle will head to Atlanta after turning in a 5.13 ERA and 1.39 WHIP with 89 strikeouts over 94.2 innings in 18 starts with the Giants this season. The right-hander has struggled with his consistency on the mound, posting six starts during which he allowed one or zero runs while also surrendering five or more runs on six occasions. Mahle will likely immediately slot in to Atlanta's starting rotation after Reynaldo Lopez (knee) was placed on the 15-day injured list Sunday.
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Gavin Williams SP | CLE
Guardians' Gavin Williams: Continues dominant stretch
Williams (11-6) earned the win Sunday against the Diamondbacks, allowing one hit and one walk while striking out 10 over 5.2 scoreless innings.
Williams was perfect through five innings, piling up nine strikeouts, including five against consecutive batters. Tim Tawa finally broke up the no-hit bid with a leadoff single in the sixth, and a rain delay ended Williams' afternoon with two outs in the inning after he had thrown 89 pitches. The right-hander has now recorded double-digit strikeouts in five consecutive starts, compiling an incredible 55:3 K:BB across 32.2 innings with a 2.48 ERA during that span. Through 23 starts this season, Williams owns a 3.56 ERA and 1.04 WHIP, and his 178 strikeouts trail only Jacob Misiorowski for the MLB lead.
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Kevin Gausman SP | CHC
Cubs' Kevin Gausman: Sent to Cubs in three-player deal
The Cubs acquired Gausman from the Blue Jays on Sunday in exchange for infielder Ty Southisene and outfielder Brett Bateman, Mark Feinsand of MLB.com reports.
Gausman, who is set to become a free agent this winter, will provide an injury-battered Cubs pitching staff with a top-of-rotation arm down the stretch. The right-hander has taken a step back statistically in 2026, but he was still more than serviceable for Toronto with a 4.38 ERA, 1.29 WHIP and 127 punchouts over 127.1 innings. Gausman had collected just five wins over his 23 starts, but he should see some improvement in that category with the move from a last-place team in the AL East to a Cubs squad that currently sits 14 games over .500.