ARLINGTON, TX - JULY 30: Roy Oswalt # 44 of the Texas Rangers pitches against the Los Angeles Angels of Anaheim on July 30, 2012 at the Rangers Ballpark in Arlington in Arlington, Texas. (Photo by Layne Murdoch/Getty Images)
Texas Rangers right-hander Roy Oswalt has been diagnosed with a right forearm strain and won't throw for several days.
The Rangers said during their game Tuesday night that Oswalt had been examined by team physician Dr. Keith Meister.
Oswalt, who Sunday made his first start since Aug. 23, left that game after two innings because of right flexor soreness near his elbow.
The team says Oswalt will be reevaluated in two or three days after not throwing during that period.
Oswalt joined the Rangers in late June. He is 4-3 with a 6.29 ERA in 13 games, nine starts and four relief appearances.