Matt Hamill Just hours before he was set to return from retirement, Matt Hamill (11-5) has withdrawn from tonight’s WSOF 19 event. WSOF rep Mike Afromowitz announced the change on Twitter . MMAjunkie subsequently confirmed with WSOF officials it was an illness that forced Hamill out of the bout. News of the removal came just moments after the start of WSOF 19, which takes place at Phoenix’s Comerica Theatre.