, WBC & WBA World Heavyweight titles. Win Richard Dunn TKO 5 (15) 01976-05-24 May 24, 1976 7001340000000000000 34 years, 7002128000000000000 128 days Munich, West Germany Retained The Ring , WBC & WBA World Heavyweight titles. Win Jimmy Young Decision (unanimous) 15 (15) 01976-04-30 April 30, 1976 7001340000000000000 34 years, 7002104000000000000 104 days Landover, MD Retained