Reaves (head) was a full participant in Thursday's practice.
Reaves suffered a head injury Week 8 against Minnesota, and he now appears back to full health. He's set for his usual depth role versus the Bills on Sunday.
Reaves (head) has been downgraded to out for the remainder of Thursday's game against the Vikings.
It remains to be seen if Reaves is in concussion protocol, but if that is the case, he'll have to pass league protocol testing before he can take the field again. For the remainder of the contest, look for Troy Apke and Landon Collins to hold down the fort at safety.
Reaves is being evaluated for a head injury and his return to Thursday's contest against the Vikings is questionable.
Reaves was shaken up early in the second half of Thursday's game. Washington entered the contest with only three safeties active and is also dealing with a hamstring injury to Quinton Dunbar. Reaves recorded three tackles before exiting the contest.
Reaves was promoted from the practice squad Saturday.
Reaves is expected to provide depth on special teams as well as in the secondary, particularly with Deshazor Everett (ankle) out for a Week 6 contest against the Dolphins.
Reaves signed a contract with the Redskins on Wednesday.
Reaves' spot on the active roster comes following the placement of Danny Johnson (finger) on injured reserve. The undrafted rookie out of South Alabama will work to make his NFL debut with the Redskins this season, and could find a role on special teams.