The Athletics recalled Estes from Triple-A Las Vegas on Friday.

Estes hasn't pitched in an MLB game since April 6, spending nearly all of the 2025 campaign at Triple-A Las Vegas. The 23-year-old has posted a 5.51 ERA and 67:20 K:BB across 17 appearances (15 starts) spanning 80 innings with Las Vegas. Estes is likely to slot into the A's rotation, taking the place of Jack Perkins (shoulder), who landed on the 15-day injured list.

DeGrom (shoulder) will throw a bullpen session Saturday, Jeff Wilson of AllDLLS.com reports.

DeGrom's last start was skipped due to right shoulder fatigue, though the Rangers indicated the decision was made as much or more due to the pitcher's workload than injury. As long as deGrom gets through his bullpen session Saturday with no issues, he should start Monday's game against the Angels.

The Astros transferred Walter (elbow) to the 60-day injured list Friday, Chandler Rome of The Athletic reports.

Walter suffered a setback Monday in his recovery from left elbow inflammation and was shut down from throwing. He'll now be ineligible to return until Sept. 23, making a regular-season return uncertain. The 28-year-old has a 3.35 ERA in 53.2 big-league innings this season.

The Astros activated McCullers (finger) from the 15-day injured list Friday, Matt Kawahara of the Houston Chronicle reports.

McCullers is set to rejoin the rotation Friday in Baltimore after missing more than a month of action with a blister on his pitching hand. The veteran right-hander threw 80 pitches and went five innings in his lone rehab start, so he shouldn't have much of a workload restriction Friday.

The Blue Jays reinstated Bieber (elbow) from the 60-day injured list to start Friday's game at Miami.

After recovering from Tommy John surgery, the right-hander is making his first start for Toronto and his first MLB appearance since April of 2024. Bieber finished his rehab assignment at Triple-A Buffalo in dominant form, as he threw 64 of 90 pitches for strikes over seven scoreless frames last Friday. The 30-year-old shouldn't have significant workload limitation given the lengthy rehab assignment, though the Blue Jays are still likely to exercise some caution with his usage. The 2020 AL Cy Young Award winner has a career 3.22 ERA and 10.2 K/9 in 136 big-league appearances, all of which to this point have come with Cleveland.

The Rockies are expected to call up Brown from Double-A Hartford to start Sunday's game against the Pirates at PNC Park, Thomas Harding of MLB.com reports.

After Colorado released Austin Gomber on Friday, Brown looks to be the leading candidate to fill the opening in the rotation. The 79th overall pick in the 2021 First-Year Player Draft, Brown missed significant development time after undergoing Tommy John surgery in 2023 and has yet to pitch above the Double-A level, but he's pitched effectively over 11 outings for Hartford. Since getting promoted from High-A Spokane on May 30, the 25-year-old right-hander has logged a 3.14 ERA and 57:15 K:BB across 43 innings at Double-A.

The Orioles placed Young on the 15-day injured list Friday with a left hamstring strain.

Young suffered the injury in the sixth inning of Thursday's start versus the Astros while covering first base. The rookie right-hander will be eligible to return Sept. 6, but with Kyle Bradish (elbow) set to join the Orioles' rotation next week, it's uncertain what role Young will be in line for if he does make it back this season.

The Marlins recalled Gusto from Triple-A Jacksonville on Friday.

Gusto will draw the start in Friday's contest versus the Blue Jays in what will be his second outing for the Marlins since he landed with Miami in a trade that sent Jesus Sanchez to the Astros. The righty holds a 4.89 ERA in 92 innings at the big-league level in 2025, though that's come with a promising 95:30 K:BB. Gusto should get the chance to stick in the Marlins' rotation for the rest of the season if he performs.

The Giants recalled Whisenhunt from Triple-A Sacramento ahead of his start against the Brewers on Friday.

Whisenhunt officially joins the 26-man roster, taking the place of Landen Roupp (knee). The 24-year-old Whisenhunt made his MLB debut in late July with three starts for the Giants, posting a 5.02 ERA and a 12:7 K:BB across 14.1 innings before being sent back down Aug. 12. Whisenhunt's numbers at Sacramento weren't much better, as he tallied a 4.37 ERA and 92:32 K:BB across 103 innings.

The Giants placed Roupp on the 15-day injured list Friday with left knee inflammation.

The club is calling it inflammation for now, but Roupp underwent an MRI on Thursday and a more specific diagnosis could come Friday, per Alex Pavlovic of NBC Sports Bay Area. Roupp was injured during Wednesday's start versus the Padres after being struck by a comebacker and then twisting awkwardly when he fell to the ground. Carson Whisenhunt is taking Roupp's spot on the roster and in the rotation.