Diamond Bar remains undefeated in league play (7-0) after taking the match with Ayala, 12 - 6! Philip Kozan and Derick Tom swept their sets, 6-0, 6-0, 6-0, 6-4, 6-3 and have yet to lose a set in the Sierra League.  Teddy Zanias and Derek Fu teamed up to take two of their three sets as did the other two doubles teams. Diamond Bar, ranked third in CIF, plays Chino Thursday, April 1, and will return from vacation to meet the mighty Titans of San Marino, ranked number two in CIF.