MLB Player News

Zerpa threw 1.2 scoreless innings in Sunday's 1-0 loss against the Tigers. He lowered his ERA to 5.01

Zerpa has improved after a few rough outings in March and early May, as he has a 1.08 ERA and 0.60 WHIP since May 16. However, he's seen a significant drop in his strikeout rate to 13.6 percent from 20.5 percent in 2024. He still has plus velocity with an average 96.0 mph fastball, so there's hope for a turnaround. He has just two holds as his slow start has limited his high-leverage usage, but he's still a key lefty in the setup corps.

The Dodgers acquired Klein from the Mariners on Monday in exchange for Joe Jacques and selected Klein's contract from Triple-A Oklahoma City.

Klein was removed from the Mariners' 40-man roster over the weekend and is now on the move to Los Angeles, where he'll get another opportunity at the big-league level. The right-handed reliever has struggled at the Triple-A level in 2025, posting a 7.40 ERA and 32:18 K:BB across 20.2 innings.

Weems agreed to a minor-league deal with the Astros on Monday, Chandler Rome of The Athletic reports.

The righty reliever is expected to report to Triple-A Sugar Land as he begins his tenure in the Astros organization. Weems opened the season with Atlanta's Triple-A affiliate in Gwinnett, turning in a 5.09 ERA, 1.69 WHIP and 18:10 K:BB in 17.2 innings before he was released May 19.

Miller picked up a hold in Sunday's 4-2 win over the Marlins, allowing two hits while striking out one over two-thirds of a scoreless inning.

Miller entered the game in the eighth inning and recorded his seventh hold of the season, throwing 12 of his 18 pitches for strikes. The left-hander gave up a single and a double before being pulled in favor of closer Camilo Doval. Miller hasn't been charged with a run since May 11. He owns a 1.40 ERA, 1.66 WHIP and a 15:13 K:BB with two wins and two blown saves across 19.1 innings in 23 appearances this season.

Swanson (1-0) recorded the win Sunday over the A's, giving up one run on one hit in one inning of relief. He struck out one.

Activated from the 60-day IL earlier in the day after recovering from a forearm issue, Swanson entered the game in the top of the eighth inning with the Blue Jays down 3-2 and had trouble finding the plate. In addition to allowing a leadoff single to Willie MacIver, he uncorked a wild pitch and plunked Denzel Clarke with a 91.1 mph fastball before finally escaping the frame with minimal damage. Swanson then found himself in line for the win when Addison Barger launched a go-ahead, three-run homer in the bottom of the eighth. The right-hander could eventually work his way into a high-leverage role, but Sunday's performance suggests Swanson still has some rust to shake off first.

Montas (lat) struck out three batters and allowed two earned runs on two hits and two walks over three innings Thursday for High-A Brooklyn in his second rehab start.

Montas, who is working his way back from a high-grade lat strain, tossed 49 pitches (28 strikes) Thursday and is expected to require at least two more appearances in the minors before becoming an option for the New York rotation around the middle of June. The 32-year-old is scheduled to make his third minor-league appearance Tuesday, this time moving up to Triple-A Syracuse after his prior two outings came with Brooklyn.

The Mariners acquired Jacques from the Dodgers on Monday in exchange for Will Klein, Joel Sherman of the New York Post reports.

Jacques has spent the entirety of the 2025 campaign at Triple-A Oklahoma City, where he's posted a 6.04 ERA but also a 24:8 K:BB over 22.1 innings. He will provide the Mariners with some experienced left-handed relief depth at Triple-A Tacoma.

Weissert struck out one over a scoreless eighth inning to earn a hold in Sunday's 3-1 win over Atlanta.

With Justin Slaten (shoulder) landing on the injured list prior to Sunday's game, Red Sox manager Alex Cora turned to Weissert to preserve the lead for closer Aroldis Chapman. Weissert has been sneaky good out of the Boston's bullpen, recording a 2.08 ERA over 13 appearances during the month of May.

Nelson could rejoin the rotation if Corbin Burnes (elbow) isn't able to make his next start, Alex Weiner of ArizonaSports.com reports.

Burnes was removed from Sunday's 3-1 win over the Nationals due to elbow discomfort and will undergo an MRI on Monday. If Burnes needs to miss time, the Diamondbacks have a quality replacement on hand in Nelson, who had been filling in for Eduardo Rodriguez (shoulder) before moving to the bullpen Friday in anticipation of Rodriguez's return from the injured list this week. Over his last eight appearances, Nelson has delivered a 1.72 ERA, 0.86 WHIP and 23:9 K:BB across 31.1 innings.

Mena (1-0) allowed one hit and one walk while striking out two over two scoreless innings to earn the win over the Nationals on Sunday.

Mena, a starter at Triple-A Reno, was called up Sunday and earned his first MLB win. His length was needed immediately when starter Corbin Burnes (elbow) left the game after 4.2 innings. If Burnes, who will undergo in MRI on Monday, misses any starts, Ryne Nelson is the logical replacement; however, Mena could also be an option. In two relief outings for the Diamondbacks in 2025, Mena has allowed one hit and walked two while striking out seven over 5.2 scoreless frames. As a starter at Reno, Mena owns a 4.84 ERA with 52 strikeouts and 16 walks over nine outings (44.2 innings).