Broncos running back C.J. Anderson will earn his first career start Sunday at St. Louis, according to The Denver Post. Even though Montee Ball is returning from a groin injury that sidelined him for five games, Anderson is getting the start following his strong performance Week 10 against the Raiders.

Ball will be the No. 2 running back Week 12 and rookie Juwan Thompson will be the Broncos' No. 3 back. Running back Ronnie Hillman, who started four of the previous five games, is sidelined due to a foot injury.