The Minnesota Vikings said late Wednesday that Head Coach Mike Zimmer was headed for emergency eye surgery that could keep him from coaching Thursday's game against the Dallas Cowboys.
The team didn't detail the nature of the procedure. Zimmer reportedly suffered a scratch to one eye during a game against the Chicago Bears on Halloween and underwent surgery for a torn retina the next day.
The 60-year-old head coach missed a post-game press conference but was back on the field for a game against the Lions the next weekend.
In a statement, Vikings General Manager Rick Spielman said that while Zimmer's status for Thursday's game is "uncertain" there is a contingency plan in place if Zimmer is unable to coach.
Spielman plans to share more details during a 10 a.m. press conference on Thursday.