グラウベ・フェイトーザ
On April 30, 2005 at the "K-1 World Grand Prix 2005 in Las Vegas", Williams' fourth venture into the Las Vegas GP, he reached the second round. In the quarter-finals, he faced Yusuke Fujimoto for a second time. The match ended in a no contest in the first round when Williams headbutted Fujimoto. However, Fujimoto suffered an injury and was unable to continue, so Williams continued to the semis where he faced Brazilian karate fighter Glaube Feitosa. Feitosa defeated him via TKO (referee stoppage) in the second round.