Slowed by injuries, Galarraga struggled through the worst offensive season of his career in . Disabled with a strained left hamstring between May and July, he later had arthroscopic surgery to repair damage to the undersurface of his left kneecap. Montreal missed Galarraga‘s glove as much as his bat, committing 43 infield errors in 53 games without him. That season, Galarraga hit .219, 9 home runs, and 33 RBI, in 107 games. He stole home for the second time in his career and hit his 100th career home run. At the end of the season, Galarraga was traded to the St. Louis Cardinals for starting pitcher Ken Hill.