TOKYO, May 25 - Grand champion Haguroyama failed to make a clean sweep in the current professional sumo tournament as he suffered his first "black ball" at the hands of Saganohana, "ozeki," on the 10th day of the 15 day competition at the temporary Kokugikan in Hamacho park here yesterday.
    As the result of Haguroyama's defeat, there is no wrestler with an undefeated record.