Hakuho benefited from a slip-up by fellow Mongolian grand champion Harumafuji on Wednesday to seize sole possession of the Summer Grand Sumo Tournament lead with four days remaining.On a day when Kisenosato became the second grand champion after Kakuryu to make an injury-enforced exit from the 15-day tournament, 37-time Emperor's Cup winner Hakuho improved his mark to 11-0 at Tokyo's Ryogoku Kokugikan.Harumafuji is alone in second at 10-1, while promotion-chasing sekiwake Takayasu, ozeki Terunofuji, and the 10th-ranked maegashira pair of Ura and Tochinoshin are tied for third at 9-2.Hakuho …READ FULL ARTICLE