Denver Broncos running back Montee Ball is expected to to be "out for a while" with a groin injury sustained on Sunday, according to Mike Klis of The Denver Post.

Though the initial thought is that he strained his groin, Ball will undergo an MRI on Monday morning.

Ball left the Broncos' 41-20 win over the Arizona Cardinals on Sunday in the third quarter. He finished with just seven yards on six carries, along with 11 yards on two catches.