Maria Sharapova defeated qualifier Sesil Karatantcheva 6-2, 6-4 to reach the Aegon Classic semifinals on Friday. Sharapova has made the semifinals in five of seven visits to Birmingham, where the Edgbaston Priory Club has made her an honorary life member. On Saturday, she'll face Alison Riske, a 19-year-old American qualifier who upset third-seeded Yanina Wickmayer 6-7 (5), 6-4, 6-3 http://sports.espn.go.com/sports/tennis/news/story?id=5275137
