The Brewers returned Zastryzny (shoulder) from his rehab assignment Saturday after he suffered a setback in his recovery, Todd Rosiak of the Milwaukee Journal Sentinel reports.

It's unclear whether Zastryzny's setback is related to his strained left shoulder or some other issue, but it will extend his stay on the injured list all the same. He's slated to undergo further testing in Milwaukee within the next few days, at which point more details regarding his new return timeline should emerge.

Dominguez gave up a hit and a walk in a scoreless ninth inning Saturday to record his first save of the season in a 6-3 win over the Blue Jays. He struck out one.

The 31-year-old right-hander needed 24 pitches (14 strikes) to get the job done, but Dominguez came away with his first save since signing a two-year, $20 million contract this winter to be the White Sox closer. Over four appearances to begin the season, he sports a 1-1 record with a 4.91 ERA, 1.64 WHIP and 3:2 K:BB over 3.2 innings.

Kay didn't factor into the decision in Saturday's 6-3 win over the Blue Jays, giving up two runs on three hits and two walks over 4.1 innings of relief. He didn't strike out a batter.

Facing the team he made his big-league debut with back in 2019, the southpaw took the mound as a bulk reliever after Grant Taylor worked a scoreless first inning. Kay kept the goose eggs coming until Vladimir Guerrero touched him up for a two-run shot in the sixth, and he exited after 76 pitches (46 strikes). Kay is still looking for his first MLB win since 2021 after spending the last two seasons in Japan, and he'll take a 4.00 ERA, 1.33 WHIP and 5:6 K:BB through nine innings into his next outing, which is set to come on the road next week in Kansas City.

Estrada didn't factor into the decision in Saturday's 6-3 loss to the White Sox, walking two and striking out three over four scoreless, no-hit innings of relief.

Entering the game to begin the second inning after opener Mason Fluharty spotted Chicago an early 1-0 lead, Estrada fired 44 of 66 pitches for strikes in an effective 2026 debut. The right-hander was briefly the pitcher of record when the Blue Jays took a 2-1 lead in the top of the sixth, but the White Sox immediately struck back in the bottom of the frame. Estrada's performance may earn him another turn through the rotation, either as a traditional starter or a bulk reliever, but with off days coming Thursday and next Monday, Toronto may elect to simply skip employing a fifth starter in the short term.

Imanaga won't start as scheduled Saturday against the Guardians, as the game was postponed due to rain, Tim Stebbins of MLB.com reports.

The two teams will play a doubleheader Sunday to make up Saturday's game, and Imanaga will take the mound during the nightcap, per Taylor McGregor of Marquee Sports Network. The 32-year-old southpaw will be looking to bounce back from a poor showing in his season debut, during which he allowed four earned runs on six hits and two walks over five innings.

The Rockies claimed Peralta off waivers from the Brewers on Saturday, Todd Rosiak of the Milwaukee Journal Sentinel reports.

Peralta lost his spot on Milwaukee's 40-man roster when the Brewers acquired outfielder Luis Matos earlier in the week, but the former will now claim a 40-man spot in Colorado's organization. Peralta owns a 5.12 ERA and 1.71 WHIP over 45.2 innings in his big-league career, and he began the season at Triple-A Nashville and allowed three earned runs over one inning across two appearances. The Rockies will option him to Triple-A Albuquerque.

Bernardino will serve as the Rockies' opening pitcher Saturday against the Phillies.

The Phillies typically use lefty sluggers Kyle Schwarber and Bryce Harper atop their lineup, so the Rockies will counter by sending the left-handed Bernardino to the mound for the first inning. The 34-year-old has fired three scoreless innings to begin the season, giving up two hits, no walks and striking out one batter in the process. Chase Dollander is expected to pitch in bulk relief once Bernardino exits the game.

Miller allowed two earned runs on two hits and a walk while striking out one across two-thirds of an inning in Friday's 10-3 loss to the Mets.

Miller had allowed just one hit and one walk in his first 1.2 innings of the season, but he struggled Friday. The left-hander entered in the ninth inning and issued a walk to the first batter he faced before surrendering an RBI double. He then gave up a single and another run before exiting. Over three outings, Miller has recorded a 7.71 ERA, 2.14 WHIP and 2:2 K:BB across 2.1 innings.

Raley struck out one in a scoreless two-thirds of an inning of relief to record his second hold of the season in Friday's win over the Giants.

The southpaw took over for Nolan McLean with one out in the sixth inning and runners on second and third, and Raley struck out Rafael Devers before getting Luis Arraez to ground out. Raley's had a strong start to the season as the top left-hander in the Mets' bullpen, posting a 0.00 ERA and 5:0 K:BB over 3.2 innings.

Slaten struck out one over a perfect inning to earn a hold in Friday's 5-2 win over San Diego.

Slaten pitched a 1-2-3 eighth inning to earn his second hold in three appearances this season, both of which set up saves for closer Aroldis Chapman. Coming off a 2025 season affected by a shoulder injury, a healthy Slaten will be a vital piece of the bullpen's setup crew in 2026.