ENGLEWOOD, Colo. — Guard Ron Leary did not practice Thursday as he remains in the concussion protocol.

"He's iffy, I think, but that's out of our hands," Head Coach Vic Fangio said Thursday. "That's totally up to those independent people, so I don't know if he'll be able to make it or not."

Outside linebacker Malik Reed (ankle/shoulder) was a limited participant Thursday after missing Wednesday's practice, but Fangio said he is also "iffy."

Safety Will Parks (hand) also improved to limited Thursday, and Fangio said he is "fine" to play Sunday.

Outside linebacker Jeremiah Attaochu (lower leg) and running back Royce Freeman (ribs) were both full participants after being limited on Wednesday.

Von Miller, meanwhile, was limited for the second consecutive day with a knee injury.

"It's considered limited, but we expect him to do a fair amount, I think," Fangio said before Thursday's practice.

Tackle Ja'Wuan James (knee) is "getting better," according to Fangio, and he again practiced in a full capacity.