MADRID - Serena Williams brushed aside Belinda Bencic of Switzerland 6-2, 6-1 to open her defence of the Madrid Open title on Sunday, while Maria Sharapova beat Klara Koukalova 6-1, 6-2 in the first round. In the mens tournament, Novak Djokovic withdrew before the start of the event because of a right wrist injury that had already affected his play at Monte Carlo last month. "I did everything possible in order to play in Madrid," Djokovic said. "But unfortunately my right arm injury has flared up again." The top-ranked Williams, who has won the clay-court tournament the past two years, hit 11 aces and broke Bencic five times to advance in less than an hour. Williams will play Peng Shuai of China in the second round. Sharapova, who lost to Williams in last years final, converted six of eight break points to take advantage of Koukalovas eight double-faults. The eighth-seeded Sharapova will play Christina McHale of the United States next. Also, Ana Ivanovic beat Madison Keys of the United States 6-1, 7-6 (4) to set up a meeting with fellow Serb Bojana Jovanovski. The 11th-seeded Ivanovic overcame her shaky serve by saving three of four break points. Cheap Bengals Jerseys Authentic . PAUL, Minn. Cheap Cincinnati Bengals Jerseys . -- The Chicago Bears have agreed to terms with safety Brock Vereen and QB David Fales on four-year contracts. http://www.cheapbengalsjerseyselite.com/. The Grizzlies erased most of a 25-point deficit before Durant, the leagues scoring champion, got hot. Cheap Bengals Jerseys China . Gordon reportedly failed another drug test and is facing a one-year ban. Gordon led the NFL in yards receiving last season despite being suspended two games for violating the leagues substance-abuse policy. Wholesale Bengals Jerseys . -- With Tony Allen back, the Memphis Grizzlies were able to turn up their defence pressure and hold off the Los Angeles Clippers down the stretch.New York, NY (SportsNetwork.com) - Carmelo Anthony tallied 31 points to help the New York Knicks continue their improved play of late with a 100-92 victory over a short-handed Oklahoma City Thunder squad. Anthony, who sat out Saturdays game at Charlotte to rest his ailing left knee, added 10 rebounds in the Knicks fourth win in five outings since they lost a franchise-worst 16 in a row from Dec. 14-Jan. 15. While Anthony was back on the court, the Thunder played without reigning league MMVP Kevin Durant for a second straight contest due to a sprained left toe.dddddddddddd Russell Westbrook did all he could to offset Durants absence by pouring in 40 points, which still wasnt enough t