CHICAGO (AP) - Derrek Lee hit two homers for the second straight game and the fourth time this season, leading the injury-plagued Chicago Cubs to a 5-1 victory over the Colorado Rockies on Saturday.

Lee, the National League home run leader with 16, slugged a solo shot in the first and added a two-run homer in the Cubs' four-run sixth. Lee has 13 career multihomers games and he has accomplished the feat on consecutive days twice.

Aramis Ramirez added a two-run shot off Colorado starter Byung-Hyun Kim (0-4) in the sixth for the Cubs,.

Chicago placed right-handed ace Mark Prior on the 15-day disabled list after an MRI revealed a compression fracture just above his right elbow. Prior was struck by a line drive in Friday's win.