Patrick Mahomes didn't have much to celebrate after the Super Bowl, but he was back to being in good spirits at the Texas Tech basketball game on Monday ... losing his mind after a fan nailed a full-court putt!!
The Kansas City Chiefs superstar -- sporting a fresh cut -- and his wife, Brittany, had courtside seats to check out his alma mater's matchup against Houston ... and during a break in the action, one guy showed off his impressive golf game in an on-court promotion.