Atlanta placed Bummer on the 15-day injured list Sunday due to left shoulder inflammation.

The left-hander threw 1.1 scoreless innings Saturday against the Mets, which is presumably when he suffered the injury since that was his first appearance in nearly a week. Bummer will be eligible to be reinstated Sept. 8, though it's unclear if he's expected to be healthy by that point.

Atlanta recalled Stratton from Triple-A Gwinnett on Sunday.

The veteran right-hander was optioned to Gwinnett on Tuesday but will quickly return to Atlanta with Aaron Bummer (shoulder) landing on the injured list. Stratton has given up seven earned runs over 8.2 innings in the majors this year and should fill a low-leverage relief role.

Atlanta recalled Suero from Triple-A Gwinnett on Sunday.

The right-hander was optioned to Gwinnett in late July and will make his return to Atlanta a month later. Suero has surrendered six earned runs over five frames in the majors this year but has a 1.39 ERA in 42 relief appearances at Triple-A.

Thompson (shoulder) is scheduled to pitch for Triple-A Reno on Tuesday, MLB.com reports.

This is expected to be Thompson's final step before activation. The right-hander could immediately be added to Arizona's unsettled closer mix once he rejoins the roster.

Duran recorded his 23rd save of the season in Saturday's 6-4 win over the Nationals, giving up two hits in a scoreless ninth inning. He struck out one.

One night after blowing his first save as a Phillie, Duran was back on the mound, and the Nats nearly got to him again as back-to-back one-out hits put runners on the corners. The right-hander buckled down and struck out James Wood before getting CJ Abrams to fly out to end the game. Over nine appearances with his new club, Duran has delivered a 1.17 ERA, 0.78 WHIP and 9:0 K:BB in 7.2 innings while converting seven of eight save chances.

Bazardo threw a scoreless eighth inning Saturday against the Athletics, allowing no hits and one walk with no strikeouts.

That's now seven consecutive scoreless appearances for Bazardo, who's given up just three runs over his past 16 outings. The right-hander has been very effective out of Seattle's bullpen since the start of June, turning in a 1.73 ERA, 0.91 WHIP and 38:14 K:BB across his last 36.1 innings.

Leasure struck out two and walked one across a scoreless inning of work Saturday against the Twins.

Leasure has two of the White Sox's last three saves, but he handled the eighth inning in a recent appearance Monday, with Grant Taylor taking the ninth. Taylor didn't pitch Saturday, but Leasure effectively handled the ninth frame with a four-run lead. Regardless of the exact split moving forward, saves aren't likely to be plentiful for Leasure. He has worked nine innings thus far in August, allowing only two earned runs while maintaining a 16:2 K:BB.

Mlodzinski improved to 3-7 and struck out five without allowing a baserunner across two scoreless innings of relief in Saturday's 5-1 win over the Rockies.

Mlodzinski had made a four-inning start in his last appearance Sunday against the Cubs, but he's since shifted back to the bullpen after the Pirates recalled Johan Oviedo from Triple-A Indianapolis and added him to the rotation earlier this week. The right-hander entered Saturday's game in the fifth inning after starter Mike Burrows was pulled in an apparent attempt to limit his workload. Mlodzinski was excellent in his two innings, generating 14 called or swinging strikes on 35 total pitches. He has allowed only three earned runs across six appearances and 14.2 innings since the start of August, while also maintaining an 18:3 K:BB.

Harris walked one but didn't allow a hit or a run over two-thirds of an inning to earn the save in Saturday's 2-1 extra-inning win over the Mariners.

Harris' walk loaded the bases with two outs, but he got Randy Arozarena to ground out, ending the threat and preserving the Athletics' lead. This was Harris' second save of the week, and he's on an eight-inning scoreless streak since he was recalled from Triple-A Las Vegas on Aug. 9. On the year, he's had mixed results with a 3.65 ERA, 1.48 WHIP and 52:27 K:BB over 49.1 innings across 36 relief appearances. He's added two saves and a hold, as he appears to be in the mix for saves following the deadline departure of Mason Miller.

Mederos (0-2) allowed six runs on four hits and two walks while striking out four over four innings to take the loss versus the Cubs on Saturday.

While Mederos didn't give up an excessive number of baserunners, he paid severely for his few mistakes. Kyle Tucker took him deep for a two-run home run in the third inning, and Reese McGuire added a grand slam in the fourth. Mederos has now given up four homers over 13 innings across his last three starts. He's posted a 7.41 ERA, 1.76 WHIP and 14:12 K:BB through 17 innings in the majors this season.