Texans wide receiver DeAndre Hopkins wasn't at practice Friday during the portion open to reporters.
Hopkins, who leads the Texans with 37 catches for 382 yards and six touchdowns, hasn't been listed on the injury report this week and has no known injury.
Texans coach Bill O'Brien and players will be available for interviews after practice.
No player has commented yet about Texans owner Bob McNair's comments ("We can't have inmates running the prison,") which he issued an apology statement for this morning.
Meanwhile, Texans offensive tackle Chris Clark (strained calf) and inside linebacker Dylan Cole (strained hamstring) didn't practice Friday.