Sean Murphy and Matt Canha homered off Jon Gray before the Rockies right-hander left with elbow soreness, and the Oakland Athletics beat Colorado 9-5.
Murphy had three hits and three RBIs for Oakland, which has won seven of 10 road games and improved to 17-8 away from home.
Gray left in the third inning with right elbow discomfort, manager Bud Black said after the game. A potential trade chip for the Rockies, Gray allowed five runs on four hits and two walks in 2 1/3 innings. Alan Trejo hit his first big league homer for Colorado.
The Rockies had won six straight at home and four in a row overall.