Ali Zahir listens to Dr. Moupali Das lecture interns who will be the next generation of HIV experts for the San Francisco public health department Friday, July 12, 2013, in San Francisco, Calif.

In a loss that could spell the end for Zahir Raheem (29-3, 17KOs) as a top contender, Ali Funeka (30-1, 25KOs) stopped him in the fourth-round of an IBF elimina ...