Sekiwake Takakeisho said Tuesday he will do everything in his power to earn promotion back to ozeki at the upcoming Autumn Grand Sumo Tournament.The four-time Emperor's Cup winner was bumped down from the sport's second-highest rank after compiling a losing record of 5-10 as a demotion-threatened "kadoban" ozeki at the July meet.Under the Japan Sumo Association's rules, he can earn automatic promotion back to ozeki by winning 10 or more bouts at the Sept. 8-22 tourney at Ryogoku Kokugikan."I'll give it my all. That doesn't change," Takakeisho said. "If I can perform my best sumo, the victor…READ FULL ARTICLE