Mongolian grand champion Hakuho did his best impression of a bulldozer on Saturday to retain his share of the lead after the first week of action at the Summer Grand Sumo Tournament.Hakuho, looking to win a record 38th career title on his return from injury, got stuck into Daieisho at the charge and faced little resistance, sending the winless No. 3 maegashira sliding across the sandy surface and out of the ring in 3.2 seconds.Hakuho and fellow Mongolian yokozuna Harumafuji share the lead at 7-0. Sekiwake Takayasu follows at 6-1 and grand champion Kisenosato is another win back in a 13-way …READ FULL ARTICLE