Kansas City Chiefs offensive coordinator Charlie Weis had emergency gall bladder surgery Monday morning, according to a newspaper report.

Weis' agent, Bob LaMonte, told The Kansas City Star that Weis chose to delay surgery until after the Sunday's home game against the San Francisco 49ers.

Chiefs coach Todd Haley refused to talk about Weis' condition Monday beyond saying that it was not a life-threatening situation.

Radio station 810 WHB was the first to report that the 54-year-old Weis had undergone emergency treatment after the game. Another Kansas City station, 610 Sports Radio KCSP, later reported that it was gall bladder surgery.

LaMonte told the newspaper that Weis had a painful infection but put off the surgery so he could coach in the game, a 31-10 Chiefs victory over the 49ers.

Last week, Michigan State coach Mark Dantonio was hospitalized after his team beat Notre Dame in overtime for what was described as a mild heart attack. He is recovering from surgery and his return for the Spartans is unknown.

Weis, the offensive coordinator for the New England Patriots' Super Bowl teams, was hired by the Chiefs after he was fired last year as head coach at Notre Dame.

He underwent a procedure on his knee in the offseason and spent most of training camp moving around on a motorized cart. He walked with difficulty while using a cane and wore a large knee brace. All he has said about that situation was that part of his knee "fell off" a few weeks before camp opened.

The Chiefs (3-0) are off this week.