Colorado transferred Darnell (hip) to the 60-day IL on Sunday.

The Rockies placed Darnell on the 15-day IL on Friday due to left hip inflammation, an injury that interim manager Warren Schaeffer acknowledged that the reliever had been dealing with "for a while," per MLB.com. While the Rockies haven't revealed that Darnell is dealing with anything more significant than swelling in the hip, the club evidently determined that the right-hander wasn't on track to return before the end of the season. Darnell will close his rookie campaign with a 3.86 ERA, 1.46 WHIP and 5:7 K:BB in 11.2 innings out of the Colorado bullpen.

The Rockies optioned Gilbreath to Triple-A Albuquerque on Sunday.

Gilbreath's stay with the big club lasted just two days, with the reliever making his lone appearance in Friday's 9-0 loss to Pittsburgh. He'll cede his spot on the 26-man active roster to right-hander McCade Brown, who was called up from Double-A Hartford to start Sunday's series finale versus the Pirates.

Holton tossed 1.1 scoreless innings of relief to earn a hold in Saturday's 4-2 win over the Royals. He allowed a hit and struck out one.

Following five innings from starter Chris Paddack and another 1.1 innings from Troy Melton, Holton came on as the bridge to closer Will Vest, with Kyle Finnegan likely unavailable after logging two innings the day before. Holton continued his steady play for the Tigers and recorded his 14th hold of the season, which leads the team. He's not in the mix for saves with Vest and Finnegan around, but the lefty has fantasy appeal in leagues that count holds, and he's also chipped in five wins out of the bullpen for good measure.

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.