Alan Ball misses practice

IRVING -- Cowboys starting free safety Alan Ball missed practice on Wednesday with a sore shoulder.

The Cowboys released Ball's backup Michael Hamlin on Tuesday and with that rookies Danny McCray and Akwasi Owusu-Ansah might get first-team reps.

If Ball can't play in Sunday's game vs. the Vikings, it would leave the Cowboys with an interesting decision to make. Should they bring back Hamlin to play against the Vikings or continue with their plans to move Jesse Holley off the practice squad to the active roster?

If that's the case, maybe the Cowboys start the game with three cornerbacks, Mike Jenkins, Terence Newman and Orlando Scandrick.