Boxers who left Boxing with a beating???

[MANGLER]

Clottey beat up Chico (RIP) pretty bad in his last fight before he died.

[Don Johnson]

Gary Lockett

[deevel79]

Oscar (if he stays retired)
Michael Spinks
Arturo Gatti
Naseem Hamed

[ИATAS]

95% of fighters.

[Southpaw16BF]

Ray Leonard
Joe Louis
Pascual Perez
Michael Spinks
Gerry Cooney
Ken Norton
Earnie Shavers
Barney Ross
Donald Curry
Lloyd Honeyghan
Jess Willard
Sam Langford

All these fighters left the sport, with a rather bad beating or a KO loss. Which is sad, as most of them were all great fighter's in their prime.

Lots more, but just a few that come to mind.

[Southpaw16BF]

Hamed got booed out the ring.

Hamed never actually left the sport with a beating, he left on a winning note. In pretty lackluster fashion he defeated tough Manuel Calvo for the vacant IBO Featherweight title on UD 12.In what would be his final bout.

[C.J.Mak]

Oscar (if he stays retired)
Michael Spinks
Arturo Gatti
Naseem Hamed

Except Hamed fought one more time against Manuel Calvo after losing badly to Barrera so although it was one of his last fight's he didn't leave boxing that way.....

[Southpaw16BF]

95% of fighters.

I dout the percentage would be that high, lots of fighters have left the sport on a winning note or not had a beating.

Carlos Monzon
Rocky Marciano
Ricardo Lopez
Eder Jofre
Lennox Lewis
Khaosai Galaxy
Gene Tunney
Larry Holmes
Tiger Flowers
Marvin Hagler
Mickey Walker
Miguel Angel Gonzalez

All these fighters went out on wins, or never got a beating. There are plenty others, just a few that come to mind.

[FreshPrince]

[Seiko]

sugar ray leonard vs hector camacho is one i can think of