Juan Martín del Potro, nicknamed 'Delpo', is an Argentine professional tennis player who is currently the highest-ranked Argentine and the eighth-ranked player in the world. In 2008, he became the first player in ATP history to win his first four career titles in as many 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, becoming the first man to defeat them both in the same Grand Slam tournament. Del Potro is the only player outside of the "Big Four" - Novak Djokovic, Rafael Nadal, Roger Federer, and Andy Murray - to have won a men's Grand Slam singles title since 2005. He is also a bronze medalist in men's singles at the London Olympics in 2012.
As a junior in 2002, del Potro won the Orange Bowl 14s title beating Pavel Tchekov in the final. At 16, he won consecutive titles at two Future ITF Circuit events in Santiago, Chile, including the 26th International Junior tournament. He won his third title in his home country at the ITF Circuit event in Buenos Aires. In 2008, del Potro won his first career ATP tour title at the Mercedes Cup in Stuttgart and his second one a week later at the Austrian Open in Kitzbühel. In August, del Potro won his third consecutive title at the Countrywide Classic in Los Angeles. He was the top seed for the Heineken Open in Auckland, New Zealand, where he defeated American Sam Querrey to take home the title. Del Potro collected his 13th ATP World Tour Title at the 2012 Swiss Indoors in Basel.