Broncos running back Montee Ball, limited to five games last season by a groin injury, promised he'll return "ready to win the job," reports ESPN.com. Ball was the starter entering the 2014 season, but in 2015 he'll likely vie for a backup role behind C.J. Anderson, who went to the Pro Bowl.

Ball also must compete with Juwan Thompson and Ronnie Hillman in the crowded backfield. Ball was ineffective before getting hurt, averaging 3.1 yards per carry.