Roy Jones Jnr survived a knockdown to earn a unanimous decision win over former sparring partner Lou Del Valle on Saturday night that gave him two-thirds of the light heavyweight title.
Jones, who added Del Valle's World Boxing Association belt to his own World Boxing Council crown, jumped up from the eighth-round knockdown, the first of his career, and won easily on all three judges' cards.
Meanwhile, Steve Collins has urged Chris Eubank to retire from boxing after watching from ringside on Saturday night as Eubank's second challenge for Carl Thompson's WBO cruiserweight title at the Sheffield Arena gradually faded behind a grotesquely swollen left eye which saw him stopped for the first time in 52 fights.
It was Eubank's fifth successive world title defeat in three years, Collins having inflicted the first two in March and September 1995.
"The guy (Eubank) is great for boxing. He is so entertaining, but for his own health I think he should stay away now because for those last few rounds he was taking a lot of heavy shots, a lot of punishment.