Rafael Nadal i Parera (IPA: [rafaˈel naˈðal]) (born June 3, 1986) is a Spanish professional tennis player who has been ranked World No. 1 since 18 August 2008. Nadal has won five Grand Slam singles titles and the 2008 Olympic gold medal. He captured four consecutive French Opens from 2005 through 2008 and Wimbledon in 2008. He is the only man other than Björn Borg to have won four consecutive French Open titles, one of only three men in the open era who won both the French Open and Wimbledon in the same calendar year, only the second male Spaniard to have won Wimbledon, and the only man who entered the Olympics ranked in the top five to win a gold medal in singles. For much of his career, Nadal has had a rivalry with Roger Federer. He was ranked World No. 2 behind Federer for a record 160 weeks before earning the top spot.[1] Nadal has won 12 of their 18 singles matches, including four of their six Grand Slam finals.[2] Nadal has been especially successful on clay courts. He has a 22--1 record in clay court tournament finals and is undefeated in 41 best-of-five-set matches on clay.[3] In each of the last four years, he has won both the French Open and two clay court Masters Series tournaments. He also owns the longest single-surface winning streak in the open era, having won 81 consecutive matches on clay from April 2005 to May 2007.[4] As a result, some tennis critics and top players already regard him as the greatest clay-court player of all time.[5] [6] [7] 2008 He played Federer in the final of Wimbledon for the third consecutive year, in the most anticipated match of their rivalry.[31] [32] Nadal entered the final on a 23 match winning streak, including his first career grass court title at the Artois Championships, staged at Queen's Club in London prior to Wimbledon. Federer was also on a roll, having won his record fifth grass court title at the Gerry Weber Open in Halle without facing a break point and then reaching the Wimbledon final without losing a set. Unlike their previous two Wimbledon finals, though, Federer was not the prohibitive favorite, and many analysts picked Nadal to win.[32] [33] They played the longest final in Wimbledon history, and because of rain delays, Nadal won the fifth set 9-7 in near-darkness. The match was widely lauded as the greatest Wimbledon final ever, with some long-time tennis critics even calling it the greatest match ever.[34] [35] [36] [37] [38] By winning his first Wimbledon title, Nadal became only the third man in the open era to win both the French Open and Wimbledon in the same year and only the second Spaniard to win Wimbledon. He also ended Federer's record streaks of five consecutive Wimbledon titles and 65 straight wins on grass. After Wimbledon, Nadal extended his winning streak to a career-best 32 matches. He won his second Rogers Cup title in Toronto and then lost in the semifinals of the Western & Southern Financial Group Masters in Cincinnati, Ohio. As a result, Nadal clinched the US Open Series and, combined with Federer's early round losses in both of those tournaments, finally earned Nadal the World No. 1 ranking on August 18, officially ending Federer's record four-and-a-half year reign at the top. At the Olympics, Nadal defeated Novak Djokovic of Serbia in the semifinals 6--4, 1--6, 6--4 and Fernando González of Chile in the final to win his first Olympic gold medal. Nadal was the first male player ranked in the top five to win the gold medal.[39] At the ongoing US Open, Nadal is the top-seeded player for the first time at a Grand Slam tournament. He did not lose a set during his first three matches, defeating qualifiers in the first and second rounds and Viktor Troicki in the third round. He then needed four sets to defeat both Sam Querrey in the fourth round and Mardy Fish in the quarterfinals. He is scheduled to play Andy Murray in the semifinals.