15-year-old American CiCi Bellis advances at Miami Open (Yahoo Sports)

Precocious amateur CiCi Bellis says she’s ready to take on the best of the pros – Serena Williams. Bellis, a 15-year-old American who made a big splash at last year’s U.S. Open, advanced Friday to a potential third-round match against Williams by beating Zarina Diyas 6-2, 6-1. Williams’ second-round match Friday night against Monica Niculescu was postponed until Saturday because of rain. ”It’s going to be really fun,” Bellis said.