Mike Zimmer underwent a "minor medical procedure" on Tuesday morning and will not be available at his scheduled press conference this afternoon, the team announced.

Zimmer, 60, is already back at the team's Winter Park headquarters as of Tuesday afternoon and plans to speak at 11 a.m. tomorrow, his regularly scheduled time on a Wednesday.

The Vikings head coach addressed the media after Monday night's 20-10 loss to the Bears and left without any apparent issue. The team flew back from Chicago and landed in Minneapolis early Tuesday morning.

In October 2014, Zimmer needed a procedure to deal with kidney stones and had to leave the team's headquarters on a Friday. He then underwent another operation the following Tuesday, the players' day off, to remove the rest of the kidney stones.