Kamaru Usman

Welterweight champion knocked challenger Masvidal out cold with a thunderous right to the chin in the main event

End came at 34 seconds of the third round, when Herb Dean stepped in to halt it as Nigerian was pounding opponent

Nigerian won in a unanimous point decision against the 35-year-old who took the match in six day’s notice

Smith surviving five gruelling five-minute rounds but the judges gave the reigning champion a comprehensive victory