If you felt the ground shaking out towards Meiji Shrine ways yesterday, don't be alarmed. It was only Japan's mammoth top-knotted wrestling throwing each other around in the annual 11 day summer tournament. The wrestlers, some weighing 300 pounds, began the grueling matches yesterday.
    Sumo fans this year will miss the performances of two Grand Champions, Haguroyama and Maedayama. Haguroyama, who won last year's autumn tourney is out with an injured heal, while Maedayama suffered acute gastro-enteritis on the eve of the tournament beginning.
    Terukuni will be the only Grand Champion performing.
    The matches yesterday started at 10 a.m., but was called off at 12.30 p.m. because of rain.