Kansas City Chiefs quarterback Patrick Mahomes just won the NFL’s MVP award at age 23. He had one of the greatest passing seasons ever and was just a few plays away from going to the Super Bowl.

He is also a stellar all-around athlete, putting up good numbers in both basketball and baseball in high school. Unfortunately for Mahomes, it looks like he has to give up on playing other sports recreationally. Chiefs GM Brett Veach made a call and put a stop to it after a video of Mahomes playing pick-up basketball went viral last week.

“As soon as I saw it, it probably took me about 2 seconds to call his agent and tell him that was a big no-no,” Veach said in a radio interview in Kansas City last week.

Mahomes was an impressive basketball player at Whitehouse High School, averaging 19.9 points, 6.7 rebounds and 3.4 assists per game as a junior. In the video that circulated online last week, Mahomes drove to the basket and used a high-quality spin move to make a layup.

However, the Chiefs do not want Mahomes to do anything that could cause an injury in the offseason. Boston Globe writer Ben Volin tweeted the list of things Mahomes is not supposed to do outside of football, according to his contract.

One of the most memorable instances of an NFL quarterback getting hurt outside of football involved Pittsburgh Steelers quarterback Ben Roethlisberger in 2006. Roethlisberger, then 24 and coming off his first Super Bowl victory, suffered several injuries after a motorcycle crash. He was riding without a helmet and his contract did not explicitly prohibit the activity.

After Veach’s phone call, Mahomes posted an Instagram story where he revealed he was playing an NBA video game to compensate for losing the ability to play real basketball. He named his created player Andy Reid.