ALAMEDA -- Terrelle Pryor was on the field with his teammates but doing very little Thursday during the media window at Raiders practice.

Pryor, who was not wearing a helmet, went through warm-ups but then stood and watched as Matt Flynn and Matt McGloin took reps with receivers and running backs.

Only one time did Pryor take a snap and throw to a receiver.

Pryor said Wednesday he believed he could be ready to play if he could practice Friday.

Raiders coach Dennis Allen did not want to speculate Wednesday how much work Pryor would need to be ready to play and there's a chance he won't divulge the name of his starting quarterback until game time.

Oakland Raiders quarterback Terrelle Pryor (2) scrambles away from Denver Broncos defensive end Robert Ayers (91) and defensive tackle Kevin Vickerson (99)
Oakland Raiders quarterback Terrelle Pryor (2) scrambles away from Denver Broncos defensive end Robert Ayers (91) and defensive tackle Kevin Vickerson (99) in the second quarter of an NFL football game, Monday, Sept. 23, 2013, in Denver. ((AP Photo/Jack Dempsey) )

Also not practicing for the Raiders was defensive end Jason Hunter (quadriceps), along with safety Tyvon Branch (ankle) and Menelik Watson (knee).

Allen will be available to the media following practice, as well as coordinators Greg Olson and Jason Tarver.

For more on the Raiders, visit the Inside the Oakland Raiders blog at ibabuzz.com/oaklandraiders. Follow Jerry McDonald on Twitter at twitter.com/Jerrymcd.