ENGLEWOOD, Colo. —Bradley Roby returned to practice in a limited capacity Thursday as he continues to move through concussion protocol, Head Coach Vance Joseph announced.

"He's progressing along at a rapid rate, so we'll see about tomorrow," Joseph said.

Joseph said Roby has not been cleared but that he has passed the first two steps of concussion protocol.

Prior to suffering his injury on Sunday, Roby turned in one of his better performances of the season. Chris Harris Jr. said Wednesday that Roby “played outstanding.”

Joseph said Thursday he agreed with Harris' assessment.

"I agree with Chris," Joseph said. "He played really, really, really [well] with great focus. He wasn't chasing plays, he was playing with great technique and he covered his guy. Most young corners, they are playing a game to make plays instead of allowing plays to come to them. When he's done that, he's played well for us. But like most young players, they want to make plays. He's been told that we want corners to not give up plays. That's the way he's played, and when he's done that, he's played well."

Joseph said Roby has responded well to the team's request.

"Absolutely he has," Joseph said. "He's been a little nicked up, but he's had a great couple weeks of practice. And that's where it starts for great corners. You have to practice the right way to play the right way, and he's doing that for us."

Linebacker Brandon Marshall (knee) and safety Dymonte Thomas (ankle) again missed practice, while nose tackle Domata Peko Sr. received a vet day.

Wide receiver DaeSean Hamilton was a full participant in practice after being limited on Wednesday.