MLB Player News

Sauer allowed two runs on two hits and two walks while striking out two over four innings in a no-decision versus the Athletics on Thursday.

Sauer was fine in his first big-league start, but he didn't pitch long enough to qualify for the win in a 19-2 blowout. He gave up a run in each of the first two innings before settling in. Over 15.2 innings this season, Sauer has a 2.30 ERA, 0.89 WHIP and 10:3 K:BB. He's got some starting experience in the minors, but he's been utilized as a middle reliever for the bulk of his time in the majors. Clayton Kershaw (toe) is poised to make his season debut this weekend, with Landon Knack a likelier bet to stick in the rotation than Sauer.

Armstrong walked one in a scoreless and hitless inning to earn the save in Thursday's 1-0 win over the Astros.

This was a game played on narrow margins, and Armstrong got the job done after Jacob deGrom outdueled Hunter Brown over the first eight innings. This was Armstrong's second save in three days, and it appears he's the next man up while Luke Jackson (hand) and Chris Martin (elbow) are unavailable. Armstrong has done fairly well this year with a 2.89 ERA, 1.13 WHIP and 20:9 K:BB across 18.2 innings, earning two saves and two holds as well as one blown save in 17 appearances. He's just a temporary closer for now, and it's likely Armstrong will resume more of a middle-relief role once the Rangers' bullpen is healthier.

Herget was designated for assignment by the Mets on Thursday, Manny Gomez of NJ.com reports.

Herget has spent nearly the entire 2025 season with Triple-A Syracuse, so the move won't affect where he is pitching, assuming he passes through waivers unclaimed. Jose Castillo was added to the roster in the corresponding move.

Iglesias picked up the save Thursday against Washington, allowing one hit with no strikeouts over a scoreless ninth inning.

It was a much-needed clean outing for Iglesias, who had surrendered a run in each of his last three appearances and had blown two of his previous four save chances. The 35-year-old has been uncharacteristically bad in 2025, posting a 5.71 ERA in 17.1 innings after notching a sub-3.00 ERA in his last five seasons, including a 1.95 ERA across 69.1 regular-season innings in 2024.

Castillo was traded from the Diamondbacks to the Mets in exchange for cash Thursday, Manny Gomez of NJ.com reports.

Castillo was cast off Arizona's 40-man roster Monday but found a new home quickly. He has only 46.2 innings in the majors since debuting in 2018, so he'll likely fill a depth role in his new organization.

Mantiply was optioned to Triple-A Reno on Thursday, Alex D'Agostino of SI.com reports.

Mantiply has struggled mightily in the majors this season, allowing multiple earned runs in half of his 10 appearances. He'll head back to Reno for the second time and seek to regain the solid form he's showcased for the last few campaigns.

Manager Dave Roberts said Thursday that Treinen (forearm) will begin playing catch within the next few days, Matthew Moreno of DodgerBlue.com reports.

Treinen is pain free and is on the cusp of starting up his throwing program. He'll still have a lengthy ramp-up period, but he may be able to return in mid-June, when he is first eligible to be activated from the 60-day injured list.

Boushley was optioned to Triple-A Round Rock on Thursday.

Boushley has split the season almost exactly evenly between the majors and Round Rock. He threw 2.1 shutout innings Wednesday and has allowed only one earned run across his last 8.1 frames in the majors. Cole Winn was called up in a corresponding move.

The Astros traded Castro to the White Sox on Thursday in exchange for cash, Robert Murray of FanSided.com reports.

Castro signed a minor-league deal with Houston during the offseason and has started the Triple-A season with a 2.29 ERA and 1.20 WHIP across 19.2 innings. The 30-year-old will now join a White Sox organization searching for answers in its bullpen, and his hot start in the minors figures to give him a decent chance at joining the South Siders relatively soon.

Mey struck out two and didn't allow a baserunner in a scoreless inning during Thursday's 7-1 win against the White Sox.

Mey has allowed just one run with an 11:3 K:BB across 7.1 innings since being promoted May 1. The 23-year-old righty has recorded one hold but has mostly pitched in lower-leverage spots so far, though he could work his way into the high-leverage mix if he can continue delivering strong performances. Journeyman Emilio Pagan has taken over the closer role with Alexis Diaz demoted to Triple-A, and if Pagan stumbles, Mey could have an outside shot at seeing save chances later in the season.