Doskoi fights in the Intergalactic Tournament funded by X.S. Cash. He wins the qualifications by pushing people off the arena with his sumo might, allowing him to be the only Human untrained in ki control to make it to the finals. Doskoi wins in his match in the third round against Sky Dragon, but he is killed by Bido while wandering the desert Battle Zone on Battle Island 2.

(Source: Dragon Ball Wiki)