The Minnesota Vikings may be without quarterback Sam Bradford for Sunday's game against the Pittsburgh Steelers due to a knee injury.
Per ESPN's Adam Schefter, Bradford will be a game-time decision with the plan being "to work him out pregame."
Per ESPN's Courtney Cronin, the Vikings promoted Kyle Sloter from their practice squad for additional quarterback depth if Bradford can't play.
Case Keenum is listed as Minnesota's backup quarterback on the official depth chart.
ESPN's Chris Mortensen reported after Minnesota's season-opening win over the New Orleans Saints that Bradford underwent an MRI on his left knee after experiencing "swelling, pain and discomfort.