Bigge (lat) was struck in the head by a foul ball while in the dugout during Thursday's game against the Orioles, Ryan Bass of FanDuel Sports Network Sun reports.

The exact severity of the issue is unclear, but it appeared to be a serious injury. Bigge was taken out on a stretcher after having his neck stabilized but was able to give a thumbs up to the crowd, per Jacob Calvin Meyer of The Baltimore Sun.

White was returned to Triple-A Charlotte following the White Sox's doubleheader against St. Louis on Thursday.

White pitched 2.1 scoreless innings in the second game, allowing two hits and one walk while striking out one. It was his second appearance in the majors this season, and he's likely to be back with the big-league club at some point this summer if injuries occur.

Armstrong (2-2) took the loss against the Royals on Thursday, allowing two runs on one hit and one walk while striking out one batter in the first inning.

With Nathan Eovaldi (triceps) on the injured list, the Rangers turned to Armstrong and the rest of the bullpen to fill the gap in the rotation. Armstrong took to the mound to start Thursday's game, but he gave up a two-run homer to Vinnie Pasquantino and was tagged with the loss as the Rangers were unable to muster up enough offense. Armstrong could be in the opener mix again next week against the Orioles at Camden Yards if Eovaldi is not cleared to return from the IL.

Estevez earned the save in Thursday's 4-1 win over the Rangers after recording no strikeouts in a perfect ninth inning.

For the second night in a row, Estevez was brought in for the ninth to protect a three-run lead, and he needed only 11 pitches (seven strikes) to retire the side. He has converted 16 of his last 17 save opportunities, and his 21 saves is tied with Robert Suarez for most in the majors. Estevez sports a 1.93 ERA, 1.10 WHIP and 28:14 K:BB across 32.2 innings this season.

The Athletics voided Holman's optional assignment to Triple-A Las Vegas on Thursday and placed him on the 15-day injured list (retroactive to Monday) with rotator cuff tendinitis in his right shoulder.

The A's originally optioned Holman to Triple-A on Monday after he had posted a 5.09 ERA in 23 innings with the major-league club. However, the team uncovered a shoulder injury Thursday and will keep him around to rehab with the big-league squad. He'll be eligible to return from the IL beginning July 1, though he may still be sent down to the minors whenever he's fully healthy.

The Athletics recalled Maldonado from Triple-A Las Vegas on Thursday.

Maldonado was relegated to the minors at the end of May after giving up eight earned runs over six innings. Since then, he's allowed just two runs in 6.1 frames with the Aviators -- good enough to earn another chance in the Athletics' bullpen. Osvaldo Bido was optioned to Triple-A in a corresponding move.

Holton will serve as the Tigers' opening pitcher for Game 2 of Thursday's doubleheader against the Pirates, Cody Stavenhagen of The Athletic reports.

Keider Montero is likely to absorb the bulk of the innings out of the bullpen. It will be the fourth opener assignment this season for Holton, who has allowed two runs with a 5:0 K:BB over four innings in his first three tries.

The Rays optioned Sulser to Triple-A Durham on Thursday, Marc Topkin of the Tampa Bay Times reports.

Sulser made three appearances after being recalled from Triple-A last week, allowing one earned run while striking out four batters over 2.1 frames. He owns a 3.21 ERA through 14 MLB innings this season but will head back to the minors in favor of Connor Seabold, who will give the team another fresh arm to work with.

The Rays recalled Seabold from Triple-A Durham on Thursday, Marc Topkin of the Tampa Bay Times reports.

Since being optioned to the minors in late May, Seabold has given up six runs while striking out eight batters and walking nine across nine innings. Despite his recent struggles, he'll return to Tampa to provide the Rays with a fresh bullpen arm, replacing Cole Sulser.

Martin was unavailable to pitch in Wednesday's 6-3 loss to the Royals due to back stiffness, Evan Grant of The Dallas Morning News reports.

It's uncertain whether the back issue has cleared up enough for Martin to be available out of the bullpen Thursday. Martin has made three scoreless appearances since returning from a shoulder injury but has not pitched since last Friday.