"Prior to turning pro, on Feb 5, 2001, Valero was in a severe motorcycle accident, in which he fractured his skull, forcing surgery to remove a blood clot. Valero claims that his Venezuelan doctor cleared him to fight on Jan 17, 2002 and he turned pro that July with a first-round kayo. After posting a record of 11-0 (11 first round knockouts) in the United States, Valero ran into trouble. In January 2004, he failed an MRI in New York and thus was not allowed to fight in the United States, although he continues to battle outside the United States. He will not be allowed to fight in the United States until he clears his medical tests with a state athletic commision. "
Well, get ready to have a big-name ring fatality the first time he fights someone elite, unfortunately. He wasn't licensed to box for all those years for a reason, I wouldn't be too comfortable licensing him now with that history.