Serena Williams beat Maria Sharapova for the 15th consecutive time Thursday, rallying in both sets to win 6-4, 6-3 in the Sony Open semifinals. Williams, seeking a record seventh Key Biscayne title, improved to 16-2 against Sharapova and hasn't lost to her favorite foil since 2004. The No. 1-ranked Williams won with a superior serve and better returns. More...