Serena Williams has won her fourth Wimbledon Women's Singles title and 13th Grand Slam Championship. In the final in London on Saturday, the top-ranked and defending champion beat the 21st seeded Russian Vera Zvonareva in straight sets 6-3, 6-2. The one-sided final lasted just 67 minutes and showed why the American is considered one of the greatest players of all time. Serena had earlier won the Wimbledon titles in 2002, 2003 and 2009. However, this was the first time she defeated someone other than her sister Venus in the final. Serena has also moved ahead of Billie Jean King into sole possession of sixth place on the all-time list of women's Grand Slam champions with Thirteen.In the Men's Singles final on Sunday, Spanish World Number One Rafael Nadal will be facing first-time Grand Slam finalist Tomas Berdych. In the semi-finals on Friday, while Nadal beat British home favourite Andy Murray, the Czech 12th seed overcame Serbian third seed Novak Djokovic.In the Mixed Doubles Final on Sunday, the second seeded duo of Leander Paes and Zimbabwe's Cara Black will take on the pair of South African Wesley Moodie and American Lisa Raymond. The combination of Paes and Cara Black had won the Australian Open title earlier this year.Overall, the 37-year old Paes who will be playing his 23rd Grand Slam final, has won six men's doubles titles and five mixed doubles crowns.