World Heavyweight Champion Muhammad Ali defends his WBC and WBA titles against the relative newcomer, Ron Lyle. Ron Lyle had only been boxing .br49th bout of Muhammad Ali The WBC & WBA World Heavyweight Championship (Age 33 Fights 48 Won 46 Lost 2 Drawn 0 ) vs Ron Lyle from - Denver, .brWBC & WBA World Heavyweight Title Fight Venue: Convention Center, Las Vegas, Nevada, USA.br1975-05-16 Ron Lyle Convention Center, Las Vegas, Nevada, United States.brMuhammad Ali vs Ron Lyle (Highlights) [1975-05-16] Title: Muhammad Ali vs Ron Lyle (Highlights) Year: 1975-05-16 Language: English.