` Maybe , '' he says . Dolgorsuren Dagvadorj was sumo 's most successful wrestler known as Asashoryu . He won the prestigious title of "yokozuna" in May 2000 and held it for a record 15 years before retiring at the age of 37 after losing to yokozuna Hakuho on March 25, 2011. Owns a circus and other real estate and has set up an investment bank .
Dolgorsuren Dagvadorj was sumo 's most successful wrestler known as Asashoryu . He won the prestigious title of "yokozuna" in May 2000 and held it for a record 15 years before retiring at the age of 37 after losing to yokozuna Hakuho on March 25, 2011. Owns a circus and other real estate and has set up an investment bank .