On Monday, Air Force quarterback Tim Jefferson was free of symptoms from a concussion he suffered against Wyoming, although the Falcons can’t be sure yet if he will play this week.

Once Jefferson was symptom free, a 48-hour clock started for him. He must remain free of symptoms for two days, which will include some aerobic activity, then he can return to practice, although it will be non-contact drills at first

“He’s able to do a little bit on a treadmill but he has to do much, much more,” Calhoun said.

Although it is a good sign Jefferson was feeling better, Calhoun was cautious about his playing status.

“There’s some still some space between being able to play,” Calhoun said.

In other injury news, cornerback Anthony Wright still has a “ways to go” as he recovers from a bruise on his back, Calhoun said. Safety Jon Davis has a slightly loose meniscus in his injured knee, but he can likely play this week.

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