Cornerback Champ Bailey is back on the football field along with safety Renaldo Hill and Marcus Thomas.
The three veterans were held out of both of Friday's two-hour practices after going on the active-physically unable to perform list Thursday.
Coach Josh McDaniels wouldn't say whether they had new injuries, lingering ailments or had failed their conditioning tests. And the three players all said they weren't allowed to talk about it.
Bailey had elbow surgery in the offseason after missing seven games with a torn groin last season, when his streak of eight consecutive Pro Bowl berths came to an end.