Montee Ball has hit the shelf for the Denver Broncos.
ESPN's Adam Schefter reports that the second-year running back will undergo an appendectomy Monday that will sideline him for the rest of training camp and the preseason. Ball is expected to be ready for the regular-season opener against the Indianapolis Colts.
Ball showed considerable promise in the back half of his rookie season and is expected to replace Knowshon Moreno as Denver's primary ball-carrier in 2014. Ball came in at No. 7 on Around The League's "Making The Leap" countdown.
Ball's absence means more touches and first-team looks for the healthy members of the Broncos' backfield. Ronnie Hillman and C.J. Anderson will see most of the work until Ball can return to action. Without any more camp or preseason games, Ball could be eased back into things at least the first week meaning he may not get full snaps in Week 1. He's still expected to emerge as the team's RB1, but now it may take some time. As of now, it doesn't seem like his early second round value should be in too much jeopardy.