BOULDER, Colo. -- Injured Colorado running backs Chris Brown and Bobby Purify are questionable for the Alamo Bowl on Dec. 28.

Brown has been out since Nov. 16 with a bruised sternum. Purify has played sparingly since spraining an ankle Nov. 29. Both initially were listed as probable to play against Wisconsin.

Colorado's tandem of Brown and Purify leads the nation with 2,493 yards, the most by any two players.