Arizona coach Bruce Arians did nothing to clear up the quarterback situation for the Cardinals heading into Sunday's game against the Washington Redskins.

Arians said all three candidates participated in practice Friday and, in his words, "Honest to God" he hasn't decided which one of them will start.

Arians says Carson Palmer was able to throw at about 80 percent of his usual velocity and after practice returned to Denver for more treatment of his injured shoulder. Drew Stanton headed to a final concussion test after practice and could be cleared to play. Both Palmer and Stanton were listed as limited in practice Friday.

If neither of them can go, the job goes to rookie Logan Thomas.