Juan Martín del Potro

Juan Martín del Potro (born 23 September 1988) is an Argentine professional tennis player who is the current highest-ranked Argentine and the ninth-ranked player in the world. Del Potro achieved a top-10 ranking by the Association of Tennis Professionals for the first time on October 6, 2008. In January 2010, he reached a career-high ranking of world no. 4. Soon after attaining this ranking, del Potro had to withdraw from most of the tournaments in 2010 due to a wrist injury. Having started playing tennis at the age of seven, del Potro won his first senior match in 2004 at the age of 15. In 2008, he became the first player in ATP history to win his first four career titles in as many tournaments. He also completed the second-longest winning streak in 2008, and the second longest by a teenager in the Open Era, behind Rafael Nadal—with his winning sequence spanning 23 matches over five tournaments. Del Potro captured his first Grand Slam title at the 2009 US Open, defeating Nadal in the semifinal and Roger Federer in the final—the first man to defeat them both in the same Grand Slam tournament. Del Potro is the only player other than the 'big three' of Djokovic, Nadal and Federer to have won a grand slam singles title since 2005. He became the second Argentine and the fifth-youngest man to win the US Open title in the Open Era.