Mongolian-born Joshoyu has vowed a rapid rise through the ranks as he made his long-awaited professional sumo debut at last month's Nagoya Grand Sumo Tournament."I want to reach sekitori as soon as possible," the 22-year-old Joshoyu said, referring to the status of the top two divisions.He became the first apprentice wrestler at the Minatogawa stable, headed by former ozeki Takakeisho, who took over the now-defunct Tokiwayama stable in January.Joshoyu had struggled to join a stable because each stable can accept only one foreign-born wrestler. He continued in amateur sumo for roughly two ye…READ FULL ARTICLE