In the final analysis, sumo is a sport determined by a wrestler's desire to achieve greatness. Though enemies lurk, the fight with oneself becomes the real challenge.

News photoNewly promoted Bulgarian sekiwake Kotooshu is seen sparring at Tokyo's Ryogoku Kokugikan Sept.

Yokozuna Asashoryu, who will be gunning for a record-tying sixth straight Emperor's Cup at the Autumn Grand Sumo Tournament kicking off Sunday, understands this fact more clearly than any of the wrestlers in the elite makuuchi division.