A "wrestling champion" refers to a person who has achieved the highest level of success in the sport of wrestling. They have proven themselves to be the best in their weight category and have won important competitions. Full definition
An accomplished athlete himself, he was a national prep school wrestling champion. (nays.org)
Carell plays John du Pont, the wealthy wrestling enthusiast whose unhealthy relationship with Olympic wrestling champions Mark and Dave Schultz ended in tragedy in 1996. (lwlies.com)
Now Miller takes on another tragedy, coupled (as life seems to do) with the inspiring story of Olympic wrestling champions Mark and David Schultz played by Channing Tatum and Mark Ruffalo respectively. (waytooindie.com)