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8/3/2014 1:45 P.M. ET

Angels make series of roster moves

ST. PETERSBURG -- The Angels made a few roster moves on Sunday morning, based on Saturday night's 10-3 loss to the Rays at Tropicana Field.

Pitcher Michael Roth was optioned to Double-A Arkansas, and pitcher Joe Thatcher was placed on the disabled list with a sprained right ankle sustained in the fifth inning on Saturday, which he expects will keep him out a few weeks.

The Halos called up pitchers Cam Bedrosian and Fernando Salas from the Class A Advanced Inland Empire. Manager Mike Scioscia said both would be available for Sunday's series finale.

Roth, who was called up prior to the Rays series, pitched 4 2/3 innings of relief in Saturday's game, throwing 87 pitches.

"In that game, you want to get a chance to get back into the game -- if he's ever gonna give you the length -- and Mike did that," Scioscia said. "We had numerous opportunities. And if you're not gonna win the game, you want those guys to really earn it with some pitching."

Scioscia said Roth's performance forced the Rays into using multiple relievers of their own -- Joel Peralta and Brad Boxberger -- in a game that otherwise could have turned into a blowout early.

But with Halos starter C.J. Wilson lasting just 1 1/3 innings and Thatcher going on the DL, the Angels needed more depth in their bullpen on Sunday.

"[Roth] understands the situation, he understands the need to get some fresh arms here -- and it was important what he did last night, even though we didn't win the game," Scioscia said. "I think in the big picture, there's a very tangible improvement we've seen in Mike from where he was last year. He's gonna pitch in the big leagues and he's gonna help us in the future."

Worth noting

Mike Trout started at designated hitter on Sunday, with Josh Hamilton in center field. Scioscia said he was just giving Trout a day off from the turf at The Trop.

• Outfielder Collin Cowgill (broken nose, thumb) could be activated from the disabled list as soon as Monday, in time for the Angels' series opener against the Dodgers, Scioscia said. Cowgill played a rehab game at Triple-A Salt Lake on Saturday and was scheduled to play on Sunday, as well.

• Scioscia said C.J. Cron's left hand was fine on Sunday, after the designated hitter caught it on Rays catcher Curt Casali's leg sliding into home on a play at the plate in the ninth inning on Saturday.

• Injured Angels pitcher Tyler Skaggs was examined by a Rays team doctor on Saturday night. The doctor confirmed the left-hander's flexor tendon strain in his left forearm and told Skaggs he could be out about four weeks. Skaggs will see a specialist when the team returns to Los Angeles.

• Second baseman Grant Green (lower back strain) has started "low-level" baseball activities, Scioscia said. Scioscia said he believed Green was hitting off a tee, but Green is still some time away from returning.

David Adler is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.