Waltman says he didn't notice the blood at first, but felt something was wrong during the after party (he finished the match) and went to the bathroom. That's when he discovered a large pool of blood in his singlet and called an ambulance. He had surgery that night, which is called a sphincteroplasty. He was released yesterday morning.
Waltman also said that his doctor has given him special instructions on how to clean his wound after using the restroom.