TOKYO - Yokozuna Onosato and Ukrainian-born ozeki Aonishiki have withdrawn from the upcoming Summer Grand Sumo Tournament, it was confirmed Friday after neither was named in the list of bouts for the first two days of the 15-day meet.

Onosato was diagnosed with rotator cuff damage in his left shoulder that requires a month to recover, having battled pain in the same part of the body since injuring it late in November's Kyushu meet. The grand champion slumped to a 0-4 record with 11 missed days at the Spring meet in March.

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