Rockies starter Roy Oswalt had to leave in the second inning of this afternoon’s game against the Diamondbacks after straining his left hamstring covering home plate after throwing a wild pitch. Eric Chavez scored on the play, giving the Diamondbacks their first run of the game. Edgmer Escalona relieved Oswalt but gave up three runs in the third.
The Rockies had signed Oswalt to a Minor League deal on May 2, paying him a salary of $2.3 million if he made it back to the Majors. After five starts with Double-A Tulsa, with whom he posted a 2.16 ERA in 33.1 innings, the Rockies promoted Oswalt and had him make his season debut on June 20. In his three starts entering this afternoon, he had surrendered 14 runs in 16 innings.