Sean Mannion

[Taansend]

Irish boxer who moved to Boston as a teen & fought Mike McCallum for the world title.

There's a film about him.

Here it is

[bennie]

Good fighter, Sean, who stuck it out in the States and learned his trade the hard way. Had a great chin.

[Tuan_Jim]

Beat Korean tough nut In Chul Baek--later a champ at super middle!

[SticknMove]

Tough as old boots was Mannion. Saw him fight Errol Christie at Ally Pally back in the late 80s. Tyrrell Biggs was on the same card as I recall.