Coach Jason Garrett said Prescott (shoulder) "won't practice much if he practices at all" Friday, Clarence E. Hill Jr. of the Fort Worth Star-Telegram reports.
Garrett said the same thing Thursday and Prescott was ultimately held out of practice, so it remains to be seen exactly how much he will do at the Cowboys' final session of the week. Even if Prescott misses Friday's practice entirely, he should still have a chance to play in Sunday's must-win matchup with Washington.