Alabama is expected to start Austin Mack at quarterback Saturday against Vanderbilt as Keelon Russell recovers from an ankle injury, sources told ESPN's Pete Thamel.
Russell has been listed as probable and is expected to be available, though the No. 3 Crimson Tide would prefer to rest him to allow his ankle to heal, Thamel notes.
Mack's only attempted four passes this season.
More to come.
