15-year-old Catherine `` Cici '' Bellis win her first ever grand slam match . Bellis defeats 12th seed Dominica Cibulkova in the U.S. Open first round . The junior world No . 2 was given a wildcard after winning the U.S. national championships . TL;DR
15-year-old Catherine `` Cici '' Bellis win her first ever grand slam match . Bellis defeats 12th seed Dominica Cibulkova in the U.S. Open first round . The junior world No . 2 was given a wildcard after winning the U.S. national championships . Bellis plays Kazakhstan 's Zarina Diyas in the second round .