Beta Ray Bill

Beta Ray Bill was a powerful fighter, who gained the title of Champion of the Contest of Champions of Sakaar.

Biography
Beta Ray Bill was stranded on Sakaar, where he was imprisoned by the Grandmaster and forced to fight in his Contest of Champions. Bill won many fight in the Sakaaran Arena, gaining the affection of the Grandmaster, who granted him the title of Champion, and dedicating him a sculpture on the facade of his palace.

Trivia

 * In the comics, Beta Ray Bill is a genetically engineered superhero created by the Korbinites to protect their race, after the destruction of their homeworld at the hands of Surtur. He is a friendly rival and ally of Thor.