Yokozuna Onosato and Hoshoryu, along with No. 15 maegashira Tobizaru, maintained a perfect record after four days of action at the Grand Sumo Tournament in London on Saturday, setting up an intriguing final day of the exhibition competition.Both yokozuna defeated previously unbeaten komusubi in the penultimate round in front of a sell-out crowd of 5,400 at the Royal Albert Hall, where a playoff will determine the title winner on Sunday if two or more wrestlers finish with the same record.Handed a tricky test against Aonishiki (3-1), Onosato quickly seized a right underarm belt hold as the U…READ FULL ARTICLE