Carl Froch landed the punch of his life to knock out George Groves in the eighth round and retain his WBA and IBF super-middleweight titles in front of an 80,000 sell-out crowd at Wembley Stadium on Saturday.
The grizzled 36-year-old, in his 12th world title fight, exploded his right glove flush on to the chin of fellow Briton Groves late in the round to end the contest in brutal fashion.
"That was a great right-hander. I timed it perfectly," said the Nottingham fighter who has struggled throughout his career to earn the plaudits his 33-2 record merits.
"I was trying to close down George, at times the crowd were getting a bit bored but I was not going to force it.
"I was biding my time and I knew as soon as I landed it correctly, on the chin, on the jaw section of the cranium, it would be all over and it was.
"It must be the best punch I have ever thrown and landed in my life. It is not going to get any better than this."
Froch's 24th knockout victory came out of the blue after an often cagey fight that occasionally burst into life before a British record crowd for a boxing match accoding to local media.
"I think I was ahead on the scorecards until that," said Groves, who was controversially stopped in the ninth round when he met Froch for the first time in November.
"I'll be pushing hard to get my world title shot and maybe, if he's still boxing, that might be against Carl again. Back to the drawing board."