The Rangers activated Hernandez (lat) from the 15-day injured list Monday.

Hernandez got a late start to the season due to a right lat strain but is ready to roll now after allowing just three runs with a 14:4 K:BB over 10 rehab innings with Triple-A Round Rock. The righty could eventually work his way into high-leverage situations but will probably be used earlier in games initially.

Kimbrel earned a save against the Angels on Monday, allowing a hit and a walk while striking out two batters over one scoreless inning.

Kimbrel ran into some trouble in attempting to protect Baltimore's two-run ninth inning lead when he allowed the first two batters he faced to reach base. A one-out walk -- Kimbrel's first free pass of the campaign -- loaded the bases for Los Angeles, but the veteran closer got Nolan Schanuel to pop out before striking out Mike Trout looking to slam the door closed in dramatic fashion. Kimbrel is now 6-for-7 in save opportunities this season, and he's allowed just one earned run over 10 frames while racking up an impressive 16:1 K:BB.

Romano allowed a run on one hit in one inning Monday. He struck out one batter and earned a save over Kansas City.

Romano coughed up a solo homer to Kyle Isbel but still finished off the 5-3 victory. Romano has converted each of his three save chances since returning from the injured list April 16. Through four appearances, he's given up two runs and has yet to walk a batter.

Miller tossed a clean ninth inning, striking out all three batters he faced to pick up his fifth save during Monday's 2-0 win over the Yankees.

Miller needed just 14 pitches to strike out the side and finish off the listless Yankees. The game was scoreless through eight, but a Zack Gelof two-run homer gave the A's the lead in the top of the ninth, allowing Miller the opportunity to close out his fifth save. All five saves have come in Miller's last five appearances as he's put a stranglehold on the ninth-inning role for Oakland. The effort dropped his ERA to 1.80 and his WHIP to 1.00 while lifting his strikeout rate to 18.0 K/9.

The White Sox activated Brebbia (calf) from the 15-day injured list Monday.

Brebbia wound up missing just over the minimum 15 days with a right calf strain. He should be used in high-leverage spots out of the White Sox bullpen but is probably well behind Michael Kopech in the pecking order for saves.

The Rays placed Fairbanks on the 15-day injured list Monday with a nerve-related issue, Ryan Bass of Bally Sports Sun reports.

The Rays haven't provided any further details regarding the injury at this time, but it would appear unrelated to the stomach issue that had idled Fairbanks over the weekend. A timetable for the reliever's return could become clearer in the coming days as more is known about his condition. Jason Adam should be first in line for saves in the Rays bullpen sans Fairbanks, though it's possible manager Kevin Cash uses more of a committee approach to the ninth inning.

The Rays recalled Kelly from Triple-A Durham on Monday, Ryan Bass of Bally Sports Sun reports.

Kelly had been optioned to Durham on Thursday, but he'll be eligible to return to the Rays less than a week later after Tampa Bay placed closer Pete Fairbanks (nerve-related condition) on the 15-day injured list in a corresponding move. Though the loss of Fairbanks creates a vacancy at the back end of the bullpen, Kelly is more likely to work in the middle innings during his time with the big club. Kelly has previously made four relief appearances for Tampa Bay this season, giving up four earned runs on six hits and one walk over 4.2 innings.

The Mariners optioned de Geus to Triple-A Tacoma on Monday.

Cody Bolton was technically the Mariners' 27th man during Sunday's doubleheader against the Rockies, but it will be de Geus who gets sent down to bring Seattle's active roster back down to 26 men. He allowed just one run over 3.1 innings covering four relief appearances during his time in the majors.

Lyles is likely to be away from the Royals for an extended period of time as he deals with a personal issue, Anne Rogers of MLB.com reports.

Lyles was placed on the inactive list over the weekend, and the Royals don't seem prepared to have him back in the bullpen anytime soon. After losing out on a rotation spot coming out of spring training, Lyles had been pitching well in a low-leverage relief role, tossing five scoreless innings through his first five appearances of the season.

The Royals optioned Veneziano to Triple-A Omaha on Monday.

Veneziano's latest stint with Kansas City lasted just two days, with the left-hander appearing in relief both Saturday and Sunday against the Orioles and allowing two runs (one earned) on four hits and one walk. The Royals called up right-hander Tyler Duffey from Triple-A to replace Veneziano in the bullpen.