A "heavyweight fighter" refers to a boxer who competes in the heaviest weight division in boxing. They usually have a large and strong physique, and typically weigh more than fighters in other weight classes. Full definition
One of a sequence of portraits of David Smith, a 90 - year - old former professional heavyweight fighter known as the Chicago Kid, was the subject of a film called Painting Chicago, commissioned by the Arts Council to coincide with an Aitchison retrospective at the Serpentine Gallery in 1982. (theguardian.com)
He is talking about heavyweight fighter Ron Lyle. (si.com)
It was like watching two heavyweight fighters pull out their best shots and try to leave their opponent on the canvas. (arsenallatest.com)