George Mason pitcher Sang Ho Baek died Saturday following complications from Tommy John surgery. He was 20. Here is the description of what happened, according to a GoFundMe fundraiser organized in his honor by a teammate.

Baek reportedly died from a blood clot during the surgery.

During his freshman season with George Mason, Baek appeared in seven games, with his collegiate debut coming on March 12.

"We are devastated by the passing of Sang," George Mason baseball head coach Bill Brown said. "Sang was an incredible teammate who was loved by everyone associated with Mason baseball. He will be missed and forever cherished in our hearts. Right now, our thoughts are with Sang's family at this unbearably difficult time."

Baek arrived at George Mason from James M. Bennette High School in Salisbury, Md. He helped lead that team to a state title in 2019.