WHO AM I? XXXV

I'm a Legend of the Fistiana;
I never won a World Title but I managed to beat 7 Champions of the World a combined total of 17 times;
I also scored wins over 3 Hall of Famers;
I had almost 20 fights against those Legends;
I was considered one of the greatest infighters and defensive boxers of the World in my time and I'm still remembered as one of the All Time greats in those aspects of the Sweet Science;
I travelled quite a lot during my career, fighting from Canada to Australia passing through different European countries;
Some of the greatest fighters in Boxing History - and I mean true ATG's - said that I was the toughest fighter they ever faced in their careers;
Amongst the tough cookies that I fought and beat, there's Clay Turner, Billy Kramer, Chuck Wiggins, Kid Henry and Mike Glover;
I was one of the few fighters that didn't draw the color line and that was the case cause I wanted to fight anyone, anytime, anywhere!
After my retirement I worked in the Army and also in many public schools as a physical education instructor;
I was born in the same Month and Year as the legendary Fado singer Alfredo Marceneiro;

Who am I?

 

No mate, sorry.
But, in a way, you're not that far.

 

No mate, wrong answer, sorry.
Keep trying, in a way, your train of thought is correct!

 

Should I add one more information?

 

Guys, I screwed up this one.
The fighter in question died in the same month that Alfredo Marceneiro was born but he was born in April. My bad.

Oh God, I really messed this one up.
I'm so sorry guys.

My bad!

 

Jeff Smith is the correct answer for this disaster of a Quiz that I provided, eheh!

Congratulations Greg, you still managed to get it right!