Most Relentless fighter in history

[Ray Corso]

Dempsey, Armstrong, LoMatta, Ketchel, Ortega, Qawi, Marciano, Frazier, Duran, ............today Rios & GGG. Theres obviously more but its dinner time! Ray.

[The Surgeon]

Dempsey, Armstrong, LoMatta, Ketchel, Ortega, Qawi, Marciano, Frazier, Duran, ............today Rios & GGG. Theres obviously more but its dinner time! Ray.

You had the chance to see Santa Cruz yet? Relentless all the way
Would love to see him vs Mares

[mikeyh1015]

Arron Pryor, Manny Pacquioa(yeah... new school > Old school) and Mike Tyson

[GeneralZod]

Ray Robinson
Rocky Marciano
Aaron Pryor

[elgranluchadore]

prime margarito was like the terminator, he always kept coming

[joseph5620]

From what I've watched on video:

Marciano
Frazier
Armstrong
Duran
Pryor
Lamotta
Qawi

They were all 15 round fighters. I won't include 12 round fighters with that list.

[SlySlickSmooth]

Chavez Sr., Pacquiao, Fraizer, Margarito, Santa Cruz, Rios, GGG

[Barn]

Frazier, Marciano, Dempsey, Jeffries, Johnson, Louis, Ali, Holyfield!

Hell of a big list, eh?

Johnson, Ali and Louis relentless?

I wouldn't say so.

[billeau2]

I think Holyfield fit the bill in addition to the others mentioned.

[Bolo Punch]

Dempsey, Armstrong, LoMatta, Ketchel, Ortega, Qawi, Marciano, Frazier, Duran, ............today Rios & GGG. Theres obviously more but its dinner time! Ray.

Great list.