Grand Champion Maedayama was upset by Bishuzan on the first day of the sumo spring tournament Wednesday. Champion Saganohana also bit the dirt.
    Newly crowned Grand Champion Azumafuji, a native of Tokyo, in his first appearance here since winning sumodom's highest laurel did not disappoint his backers by easily copping his match.
    A packed house of 10,000 fans greeted the start of the tournament which will run 13 days until January 24 at the Hamacho Stadium in Nihonbashi.