Dixon was late to the 8 a.m. PT walk-through and as he attempted to walk on the field, he was waved off by coach Jason Garrett. The hour-long session featured mostly prep work for the Baltimore Ravens, Saturday's opponent at AT&T Stadium.
Garrett did not address reporters after the walk-through.
Dixon returned to practice on Thursday after missing four days because of a concussion suffered in the Aug. 7 preseason game against the San Diego Chargers. He was credited with a team-high 12 tackles and was the lone defensive player singled out in the 27-7 loss for his play.