Anthony Joshua retains titles after knockout win over Pulev Joshua floored his opponent on three different occasions. ADVERTISEMENT Anthony Joshua has successfully defended his WBA, IBF and WBO heavyweight world titles following his ninth round knock out victory over Kubrat Pulev on Saturday night in London. The Nigeria-born British champion floored his Bulgarian challenger three times in a dramatic but yet entertaining contest. Already, many believe this ruthless win by Joshua should earn him an undisputed fight against Tyson Fury next year. Saturday’s contest between Joshua and Pulev began predictablely on a cagey note as both men appeared very cautious and exchanged jabs intermittently.