Probably any of his 3 fights with Joe Frazier. He lost the 1st, then defeated Frazier in the 2nd and 3rd fights.
Ali won 56 fights, 37 inside the distance. he lost 5 fights, 3 of which he avenged (two of them twice) and the last two defeats were his last two fights when he was only a shadow of his former self.
He won 56 with 37 by ko and he lost 5. of those 5 he avenged three (two of them twice) and the last two defeats were his last two fight.
No John Cena has not lost any fights he has been in
5 as a pro out of 61, and 5 as an amatuer out of 105. http://www.boxrec.com/list_bouts.php?human_id=180&cat=boxer
Mayweather has lost 5 amatuer fights, but does have a perfect professional record.
By then he was 40 years old long past his best, and he was no longer the bee or butterfly he once was in the ring. The speed had gone and he lost more fights.
Joe Louis won 68 fights and lost 3. Altogether his was in 71 (professional) fights.
he has only lost two fights as a pro, one to lennox Lewis and one to chris byrd three years earlier.
Mike Tyson has lost a total of six fights in his career. He has lost to James Buster Dougles, Evander Holyfield (twice), Lennox Lewis, Danny Williams, and Kevin McBride.
Muhammad Ali first fight he lost was in 1971 he lost to American boxer Joe Frazier that match also lost him the tittle of heavyweight champion of the world.
He lost 5Frazier, Norton, Leon Spinks, Holmes and Trevor Berbick5 times
yeah chris brown got into and he lost all of them he a pussy yeah chris brown got into fights and he lost all of them he a pussy yeah he did
he lost three
He won 66 fights (52 by KO/TKO), including 25 title defenses. He lost only 3 fights, and 1 no contest.
Parkinsons disease and he lost
Laila Ali never lost a fight her record is 24-0.
Yeah he's lost a lot of fights.
the ninja actually lost some fights
one that they show against Mr.T
In Kinshasa, Zaire, on 30th October 1974 George Foreman lost by ko in round 8 to Muhammad Ali in probably one of the most famous fights in boxing history, 'The Rumble In The Jungle'.
5. Ali lost to Joe Frazier in 1971, Ken Norton in 1973, Leon Spinks in 1978, Larry Holmes in 1980, and Trevor Berbick in 1981.