Danny Williams claimed the Commonwealth heavyweight title with a points win over fellow Briton Audley Harrison.
The fight only came to life in the last three rounds after Williams knocked his bitter rival down with a big right.
Both boxers traded punches as they went in search of a knockout blow, the crowd at London's ExCel Arena finally getting the contest they were hoping for.
Williams got the win following a split decision - scored the 116-113 116-112 winner by two judges.
Harrison, however, was deemed the champion by one judge - Mark Ring giving him the edge 114-113 but to no avail.
It was his first defeat in 20 professional fights but arguably the first real challenge of his pro career.
"It was a tough fight," said Harrison. "I have no excuses but I lost my left hand from the third round.
"I'll go back to the drawing board but I will come back and I will overcome this. Danny Williams beat me on the night and he got the result. I didn't box great but it was a split decision.
"It's the first defeat of my career but I will be back - Frank Bruno won the world title at the fourth attempt."
Williams admitted he was delighted after edging his arch rival.