Carmona was injured as he ran to cover first base in the third inning of Cleveland's 13-9 loss to the Texas Rangers on Friday night. He threw one pitch to the next batter, then left the game. The right-hander allowed six runs over two innings, hiking his ERA from 2.25 to 3.10.

Cleveland optioned right-hander Jensen Lewis to Triple-A Buffalo. The Indians recalled Edward Mujica from Buffalo and purchased the contract of right-hander Scott Elarton from the Bisons.

The Indians are concerned about Lewis's drop in velocity and believe the 24-year-old can regain speed and command by working on a few fundamentals in his delivery.

"He was doing a decent job, but we need to get him back to the way he was last year," Wedge said of Lewis, who was 0-2 with a 3.58 ERA in 20 games in relief. He went 1-1 with a 2.15 ERA in 26 outings as a rookie a year ago.

"We need a guy like him that we can count on at the back end," Wedge continued. "He's got a lot of gusto out there, he's healthy, but he's not the pitcher we know he can be."

Carmona's injury occurred at about the same time that right-hander Jake Westbrook was pitching six scoreless innings during an injury rehabilitation assignment at Double-A Akron. Westbrook has been sidelined since April 22 with a strain near his left ribcage.

The 33-year-old Elarton was 1-2 with a 2.45 ERA in 15 relief appearances at Buffalo. He has a 56-60 record with a 5.31 ERA, mostly as a starter for Houston, Colorado, the Indians and Kansas City. He was 14-14 with the Indians in 2004 and 2005.

"Scott was close to making this ballclub out of spring training," Wedge said. "He's a strike-thrower with a lot of experience."

Mujica, 24, was 0-2 with four saves and a 4.15 ERA at Buffalo. He was called up by the Indians five times last season.