TOKYO, Jan. 13 - Still maintaining its popularity among Japanese sports fans, despite the inroads of such modern athletic events as baseball and rugby, is Sumo, traditional Japanese wrestling.
    It is true that in the postwar years, Sumo has been hard pressed by baseball.
    It is also true that due to the food shortage, it has not been easy for a Sumo wrestler, who eats four to five go of rice for each meal, to secure sufficient nourishment.
    Wrestling camps, having on their roster from 100 to 200 of these Gargantuan eaters, have also encountered considerable difficulty in keeping out of the red financially.
    But with the January main Sumo tournament scheduled to being at the new arena here from January 14, sudden interest has been aroused among wrestling fans.
    Sumo wrestlers, averaging over 250 pounds in weight, will again be showing their stuff. The heaviest is Azumafuji, 350 pounds.
    Who will become the champion of the tournament starting today?