Patrick Mahomes undergoes surgery to repair ACL day after injury

• Kansas City Chiefs quarterback Patrick Mahomes underwent surgery to repair a torn left ACL.
• The injury occurred during a loss to the Los Angeles Chargers, which eliminated the Chiefs from playoff contention.
• Dr. Dan Cooper, a Dallas-based orthopedic surgeon, performed the procedure.
• Mahomes is expected to begin rehabilitation immediately and has about nine months to recover for the start of the 2026 season.

Kansas City Chiefs quarterback Patrick Mahomes underwent surgery to repair his torn left ACL on Dec. 15 in Dallas, Texas, the team said.

Dr. Dan Cooper, an orthopedic surgeon based in Dallas, performed the surgery. Cooper specializes in knee and shoulder injuries for the Carrell Clinic, based in Texas.

Chiefs head coach Andy Reid said earlier Dec. 15 that Mahomes was seeking a second opinion in the Dallas area. The Chiefs said Mahomes will begin his rehab immediately. The three-time Super Bowl winner will have roughly nine months to prepare for Week 1 of the 2026 season.

ESPN reported that Cooper also repaired Mahomes’ torn lateral collateral ligament (LCL).

Mahomes suffered the injury on Dec. 14 as the Chiefs lost to the Los Angeles Chargers at home, which knocked them out of playoff contention. The two-time MVP was tackled from behind by Chargers defensive end Da’Shawn Hand. Mahomes immediately reached for his left knee after being rolled up from behind as Kansas City’s medical staff immediately tended to him.

He eventually walked off under his own power but Chiefs head coach Andy Reid told reporters that the initial prognosis did not “look good.”

Gardner Minshew replaced Mahomes and purports to be Kansas City’s starter for the final three games of the season.

Contributing: Jacob Camenker

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