Jax will serve as the Rays' opening pitcher for Wednesday's game against the White Sox, Ryan Bass of FanDuel Sports Network Sun reports.

With Ryan Pepiot unavailable for his scheduled start Wednesday due to fatigue, the Rays will turn to Jax to lead off what's expected to be a bullpen game. The 30-year-old right-hander has given up eight earned runs in just 12 innings since being acquired from the Twins at the trade deadline and isn't expected to pitch past the first inning during what will be his second opening assignment in seven days.

Ferrer recorded one out to earn the save against Miami on Tuesday, allowing a hit without a walk or strikeout.

Ferrer came into a 7-4 game with a runner on second base. That runner would score, adding another run to Cole Henry's final line, but Ferrer would walk away with his eighth save of the year. Ferrer has now delivered 15.2 straight innings without giving up an earned run, lowering his ERA from 5.03 to 3.89 in the process. He's converted all eight of his save chances since stepping into the closer role for Washington.

Bowlan will serve as the Royals' opening pitcher for Wednesday's game against the Guardians, Anne Rogers of MLB.com reports.

The Royals are seemingly going to rely on their bullpen to get through Wednesday's contest, and they'll start by sending out Bowlan for the first handful of outs. The 28-year-old owns a 3.57 ERA and 1.13 WHIP through 35.1 innings on the season and has five appearances of at least two innings, so there's a chance he remains in Wednesday's contest past the first frame before getting the hook.

Bellozo was pulled from Tuesday's game against the Nationals with right triceps tightness, Kevin Barral of FishonFirst.com reports.

Bellozo gave up two hits and struck out a batter across two-plus innings out of the bullpen Tuesday before his triceps forced him out during the ninth. The severity of his injury remains unknown, though the Marlins will presumably stay away from using Bellozo in relief over the next couple of days.

The Padres optioned Jacob to Triple-A El Paso on Tuesday.

Michael King (knee) was activated from the 15-day injured list and is starting Tuesday, so Jacob was optioned to make room. Jacob made three appearances after being recalled Sept. 2, allowing one earned run on two hits with a 3:3 K:BB across 3.1 innings.

The Tigers recalled Sommers from Triple-A Toledo on Tuesday.

Bailey Horn was placed on the paternity list Tuesday, so Sommers will fill in for him. Sommers made his MLB debut Aug. 22 in his last stint with the Tigers that concluded Sept. 2. He saw just three innings of work and gave up six earned runs in that span.

The Tigers placed Horn on the paternity list Tuesday.

Horn will be allowed to miss up to three games while he welcomes a new addition to his family. Drew Sommers was recalled from Triple-A Toledo to fill the opening in Detroit's bullpen.

The Dodgers optioned Casparius to Triple-A Oklahoma City on Tuesday.

Casparius had been having a solid stretch since July 25 as he notched a 2.63 ERA across 13.2 innings in that span. However, he loses his spot on the active roster to Alex Vesia (oblique), who was activated from the 15-day injured list Tuesday.

The Dodgers reinstated Vesia (oblique) from the injured list Tuesday.

A right oblique strain has kept Vesia on the shelf since Aug. 21, though he pitched two shutout innings while striking out three batters in two rehab appearances at Triple-A Oklahoma City. Now fully healthy, the 29-year-old southpaw will reclaim a high-leverage role in the Dodgers' bullpen after posting a 2.75 ERA and 0.99 WHIP through 52.1 innings before his injury. Ben Casparius was optioned to Oklahoma City in a corresponding move.

The Brewers optioned Rodriguez to Triple-A Nashville on Tuesday.

Rodriguez tossed 1.1 scoreless frames in Monday's loss to the Rangers but finds himself back in the minors a day later. His spot on the roster will be absorbed by Chad Patrick, who is starting Tuesday's game in Texas.