Hader (biceps) threw a bullpen session Friday, Chandler Rome of The Athletic reports.

Hader's scheduled bullpen seemingly went as planned, which means the veteran lefty is still on schedule. Astros general manager Dana Brown said Thursday that Hader will begin facing hitters by mid-April, so he's still a ways away from returning.

Seattle recalled Wilcox from Triple-A Tacoma on Friday.

Wilcox, after initially falling short of the Opening Day roster, will join the big-league club after reliever Carlos Vargas (lat) was placed on the 15-day injured list. Wilcox has appeared in just one MLB game during his career.

The Mariners placed Vargas on the 15-day injured list Friday, retroactive to March 24, due to a right lat strain.

Vargas threw 77 innings of relief for the Mariners in 2025 and figured to play an important role out of the bullpen once again in 2026. However, his season debut will be pushed back at least two weeks as he tends to a strained lat. Cole Wilcox was called up from Triple-A Tacoma in a corresponding move.

The White Sox claimed Hudson off waivers from the Mets on Friday.

Hudson was designated for assignment Wednesday, and he'll return to the White Sox, with whom he spent the tail end of the 2025 campaign. The southpaw has no minor-league options remaining, so he'll claim a spot on the 26-man active roster. Hudson appeared in 16 MLB games last season between Chicago and Milwaukee, posting a 4.80 ERA and 19:13 K:BB across 15 innings.

Alcala has opted out of his minor-league contract and will become a free agent, Ari Alexander of 7 News Boston reports.

Alcala failed to make the Blue Jays' big-league roster and triggered the opt-out clause in his contract. The 29-year-old will now hit the open market. He appeared in 56 MLB games last season between the Twins, Red Sox and Cardinals, posting a 6.22 ERA, 1.75 WHIP and 61:30 K:BB across 55 innings.

Beeter struck out one and walked two in a scoreless eighth inning during Thursday's 10-4 win over the Cubs.

The Nationals held an 8-4 lead when Beeter took the mound to face the bottom half of Chicago's batting order -- not exactly a high-leverage spot for the 2026 debut of a pitcher generally projected to lead the team in saves this season. Washington doesn't have any established options at the back of its bullpen, however, so as long as Beeter remains effective, he should be in the mix to protect close ninth-inning leads. The 27-year-old right-hander will need to display more control than he did Opening Day to stay in the saves picture, as he tossed just 12 of 24 pitches for strikes against the Cubs. Cole Henry and potentially Cionel Perez, who worked the ninth Thursday, could also get save chances while new manager Blake Butera sorts out his bullpen.

Pivetta (0-1) took the loss Thursday versus Detroit, allowing six runs on seven hits and three walks while striking out four batters over three innings.

On the heels of his career-best 2025 campaign, Pivetta was awarded his first MLB Opening Day start. However, things didn't go well for the right-hander, as he gave up more earned runs Thursday than he did in all but one outing last year. Pivetta struggled from the get-go, giving up four runs in the first frame. His control was largely to blame -- Pivetta served up three free passes in that opening inning. He'll try to turn things around in his second start, which is tentatively slated to come at home against San Francisco next week.

Duran picked up the save Thursday against the Rangers, allowing one hit and no walks in two-thirds of an inning. He struck out one.

A three-run ninth inning for Texas opened the door for a save situation, allowing the hard-throwing right-hander to enter the game and shut the door for his first save of the season. Duran is set up as Philadelphia's primary closer to open the campaign, after he dazzled a year ago with a 2.18 ERA, 0.92 WHIP and 27:1 K:BB across 20.2 regular-season frames after being acquired by the Phillies at the trade deadline.

Chapman picked up the save Thursday against the Reds, retiring all three batters he faced in the ninth inning.

Although Chapman failed to record a strikeout, he managed to keep the ball in the yard via three flyouts to nail down a save in his first appearance of the campaign. After posting a career-best 1.17 ERA and 0.70 WHIP over 67 regular-season appearances in 2025, the hard-throwing left-hander is locked in as Boston's top closer to begin the season.

Crochet (1-0) picked up the win Thursday against the Reds, allowing no runs on three hits and two walks in six innings. He struck out eight.

The All-Star southpaw found himself in midseason form in his season debut, firing six shutout frames and also notably escaping a bases-loaded jam to close his final frame. Crochet was also able to throw 80 pitches Thursday, and his final start during spring training saw him hurl 89 pitches. He should build up to closer to a full workload in his next start, which is slated to come in Houston next week.