Zab Judah may have been looking ahead to a possible match with Oscar De La Hoya in September but he sure took care of business last night. In one of his best career performances Zab destroyed Cosme Rivera in the third round.

   Although Rivera came in with a high ranking, it was not the consensus that he would dethrone Zab. It was the way Judah won that was impressive. Zab had Cosme down twice in the first and when he dropped Cosme again in third, referee Joe Cortez had seen enough. The time was 2:11.

   Will Grigsby a 35 year old former champion from Minnesota scored a mild upset when he outscored Victor Burgos to capture the I.B.F. Junior Flyweight crown. The scores were 117-111, 116-112 and 118-110. Grigsby is now 18-2-1 with 7 kayos while Burgos drops to 37-14-3.