Teddy Bridgewater's future with the Minnesota Vikings remains murky, as the quarterback recovers from a torn ACL and left knee dislocation.
Coach Mike Zimmer said Thursday there were still too many factors in Bridgewater's recovery to commit to a specific date for his return.
"He's doing well," Zimmer said, "but we don't know when he'll be back."
Bridgewater, 24, was injured during a non-contact drill at practice on Aug.