Leasure retired all four batters faced to earn the save in Monday's 6-5 win at Minnesota. He struck out two.

The Chicago reliever required only 14 pitches to notch his first four-out save of the season. With Leasure, Grant Taylor, Mike Vasil, and Steven Wilson all collecting saves in August for the White Sox, the team is in a full blown closer-by-committee situation. Through 52 total frames, Leasure has pitched to a 4.15 ERA, 1.35 WHIP and impressive 11.8 K/9, which should keep him in the mix for occasional save opportunities going forward.

Alexander (5-13) picked up the win in Monday's game against Minnesota, allowing one run on two hits and no walks with one strikeout.

The 31-year-old southpaw was credited with the victory after the White Sox scored two runs in the eighth to take the lead. Alexander didn't have his sharpest outing himself, yielding a run on a Brooks Lee single in the seventh. The Chicago lefty continues to pitch in long relief and is not worthy of fantasy consideration due to a 4.85 ERA, 1.37 WHIP and 74:28 K:BB across 89 total frames.

Sommers (0-1) allowed three runs on two hits across an inning of relief to take the loss in Monday's game against the Mets. He struck out one.

With Detroit starter Charlie Morton only lasting 3.2 innings, Sommers came on in the middle of the contest and struggled against a potent New York lineup. The key hit against the rookie lefty was a two-RBI triple by Juan Soto, who then came around to score on a Brandon Nimmo single. Sommers has now allowed at least one run in three of his first four MLB appearances, and he's sitting with an ugly 18.00 ERA.

The Rangers activated Martin (calf) from the 15-day injured list Monday.

Martin has missed most of the second half with a left calf strain but has been cleared to return after tossing a scoreless inning in a rehab appearance with Double-A Frisco over the weekend. The 39-year-old will re-enter the late-inning mix for the Rangers, potentially even seeing some save chances in September.

Chapman collected the save in Monday's 6-4 victory over the Guardians, pitching a clean inning with one strikeout.

The flamethrowing southpaw required only five pitches to pocket his 363rd career save. Chapman has notched 16 consecutive scoreless appearances over which he's fired 12.2 hitless frames with a 16:4 K:BB and 11 saves. The 37-year-old has reentered the discussion as one of the elite fantasy closers this season thanks to his 1.00 ERA, 0.65 WHIP and 77:14 K:BB across 54 total innings.

The Diamondbacks activated Thompson (shoulder) from the 15-day injured list Monday.

Thompson has been shelved since early July with a right scapular strain but is ready to go after making a pair of scoreless rehab appearances with Triple-A Reno. The 33-year-old could be in the mix for saves as part of an unsettled Diamondbacks bullpen.

Gipson-Long will be recalled from Triple-A Toledo to start Tuesday's game against the Mets in Detroit, Evan Woodbery of MLive.com reports.

Gipson-Long holds a 4.32 ERA, 1.04 WHIP and 20:4 K:BB in 25 innings covering two starts and four relief appearances for the Tigers this season. He hasn't reached the five-inning mark in an appearance since late June, so the right-hander could be in line for a relatively abbreviated outing Tuesday. Gipson-Long seems likely to be shifted to long relief after Tuesday's spot start, if he isn't optioned back to Triple-A.

The Padres recalled Reynolds from Triple-A El Paso on Monday.

Reynolds has appeared in 18 games for San Diego this season and owns a 5.55 ERA, 1.32 WHIP and 22:13 K:BB across 24.1 innings. He'll likely handle a low-leverage relief role during his upcoming stint with the Padres.

Poteet elected to free agency Monday, Jake Rill of MLB.com reports.

Poteet has decided to hit the free-agent market rather than accepting the Orioles' outright assignment to Triple-A Norfolk. The 31-year-old has missed much of the season with a shoulder injury but recently turned in two scoreless outings at Norfolk.

The Dodgers activated Kopech (knee) from the 60-day injured list Monday.

Kopech had surgery July 1 to repair a torn meniscus in his right knee, but he's ready to join the big-league bullpen after making seven rehab appearances with Triple-A Oklahoma City. The righty held an 11.81 ERA and 5:9 K:BB over 5.1 innings in those outings, so the Dodgers are likely to ease Kopech into high-leverage spots.