Philadelphia quarterback Michael Vick will dress as a backup against the Titans on Sunday, though his exact role this week - and beyond - is unclear.
"I can't tell you right now whether he's going to be two or three" on Sunday, said head coach Andy Reid, meaning Vick might either be Kevin Kolb's backup or the emergency third quarterback.
"I can throw the ball, and I can throw it full strength and effectively," Vick said after Friday's practice. "If the situation calls for me to go out and play, then I'll be ready."
If Vick is the number two quarterback, it will be another sign his recovery is going well.