Grand champions Onosato and Hoshoryu are set to return from injury, while Ukrainian star Aonishiki will begin his battle for re-promotion to ozeki when the 15-day Nagoya Grand Sumo Tournament opens Sunday at IG Arena.The 22-year-old Aonishiki faces a pivotal test after sitting out the entire Summer Grand Sumo Tournament in May with ankle trouble and dropping from ozeki to the third-highest rank of sekiwake.The European dynamo can earn promotion straight back to the second-highest rank with a double-digit win total in Nagoya and will face No. 3 maegashira Hiradoumi on the opening day.After t…READ FULL ARTICLE