Keenan Mayo reaches Orange Bowl doubles quarters

   Keenan Mayo of Roseville in the Sacramento area extended his doubles winning streak to seven matches today. 
   Tomas Kopczynski of Delray Beach, Fla., and Mayo topped Allan Deschamps and Hugo Gaston of France 2-6, 7-6 (7) [10-6] in a matchup of unseeded teams to reach the boys 18 quarterfinals in the Orange Bowl on clay in Plantation, Fla.
   Mayo won last week's Eddie Herr title in Bradenton, Fla., with Adrian Andreev of Bulgaria. Mayo's brother, Aidan, reached the singles semifinals in the Eddie Herr 14s.
   Kopczynski and Mayo, who will enroll at the University of Illinois next fall, will play unseeded Daniil Glinka of Estonia and Sumit Sarkar of New York. Glinka and Sarkar beat unseeded Justin Schlageter and Leopold Zima of Germany 1-6, 7-6 (3) [10-8].
   In the second round of girls 18 doubles, top-seeded Caty McNally of Cincinnati and Whitney Osuigwe of Bradenton dominated unseeded Niluka Madurawe of Sunnyvale in the San Francisco Bay Area and Luba Vasilyuk of Frisco, Texas, 6-3, 6-1. Madurawe has verbally committed to Stanford.
   Osuigwe turned 15 in April and two months later became the first American to win the French Open girls singles title since Jennifer Capriati in 1989.