The Mets designated Castillo for assignment Sunday.

Castillo will lose his spot on the 40-man roster with the Mets needing to clear a spot for left-hander Gregory Soto, who has reported to the team after being acquired from the Orioles on Friday. Over his 19 appearances at the big-league level this season between the Diamondbacks and Mets, Castillo has produced a 5.30 ERA and 1.93 WHIP while striking out 20 batters over 18.2 innings.

Sands will serve as the Twins' opening pitcher in Sunday's game against the Nationals.

He'll serve as an opener for the third time this season after lasting no more than two innings in starts July 5 and July 12. It's not clear whether Sands will be followed by a bulk reliever such as Travis Adams, or if the Twins will use a true bullpen day.

The Dodgers optioned Henriquez to Triple-A Oklahoma City on Sunday.

Henriquez was up with the Dodgers for a little less than a week and made three relief appearances, tossing 2.1 scoreless frames and collecting one hold. He'll give up his spot in the bullpen to Justin Wrobleski.

The Dodgers optioned Klein to Triple-A Oklahoma City on Sunday.

He'll give up his spot in the Los Angeles bullpen to Blake Treinen (forearm). During his four-week stay with the Dodgers, Klein made eight relief appearances and gave up six runs (four earned) on nine hits and eight walks over seven innings.

The Dodgers recalled Wrobleski from Triple-A Oklahoma City on Sunday.

Wrobleski looks poised to operate as a more traditional reliever during this stint with the big club. With Shohei Ohtani likely to build up to four innings in his next start Wednesday and Blake Snell on track to return from the 60-day injured list later in the week, the Dodgers won't have an opening in the rotation for Wrobleski, who has logged a 4.50 ERA and 1.20 WHIP over 40 innings in the majors this season.

The Dodgers reinstated Treinen (forearm) from the 60-day injured list Sunday.

Treinen has been cleared to rejoin the Los Angeles bullpen for the first time since mid-April following a prolonged recovery from a right forearm injury. The veteran righty struck out 10 batters while allowing just two runs (one earned) on one hit and one walk over seven rehab innings between the rookie-level Arizona Complex League and Triple-A Oklahoma City. Treinen could enter the mix for saves after Tanner Scott (elbow) was recently placed on the 15-day IL, but the Dodgers' ninth-inning picture is already crowded even before any trade-deadline acquisitions are added to the roster.

The Brewers released Garcia on June 4.

Garcia made 14 appearances out of the White Sox bullpen a season ago but had pitched exclusively at the Triple-A level with Milwaukee in 2025 after joining the organization on a minor-league deal over the winter. In his 10 appearances (six starts) with the Brewers' top affiliate in Nashville, Garcia logged a 5.45 ERA, 1.73 WHIP and 27:17 K:BB in 33 innings.

The Royals recalled Bowlan from Triple-A Omaha on Sunday.

The right-hander will provide Kansas City with a fresh arm in the bullpen, but he's unlikely to be entrusted with a high-leverage role. Over his previous stints in the majors this season, Bowlan has made 17 appearances and has delivered a 4.94 ERA, 1.35 WHIP and 21:9 K:BB in 23.2 innings.

The Rockies recalled Chivilli from Triple-A Albuquerque on Sunday.

Chivilli will take the spot of Ryan Rolison, who was demoted to Triple-A after giving up two runs (one earned) over 1.2 innings Saturday. Over 25 appearances out of the Colorado bullpen this season, Chivilli has struggled to a 5.91 ERA, 1.60 WHIP and 26:16 K:BB in 35 innings.

The Rockies optioned Rolison to Triple-A Albuquerque on Sunday.

After yielding two runs (one earned) over 1.2 innings in a 33-pitch relief appearance Saturday, Rolison was unlikely to be available for the next day or two. As a result, the Rockies opted to swap him off the 26-man roster in favor of a fresh bullpen arm in Angel Chivilli.