Gustavo "Guga" Kuerten (Portuguese: [ɡusˈtavu ˈkiʁtẽ]; born 10 September 1976) is a Brazilian former professional tennis player. He was ranked as the world No. 1 in men's singles by the Association of Tennis Professionals for 43 weeks, including as the year-end No. 1 in 2000. Kuerten won 20 ATP Tour-level singles titles, including three majors at the French Open in 1997, 2000, and 2001, as well as the 2000 Tennis Masters Cup. He also won eight doubles titles. Kuerten is widely regarded as the best Brazilian tennis player of all time and is often mentioned as one of the country's biggest sportsmen ever, alongside Pelé, Ayrton Senna, Anderson Silva and others. He was inducted into the International Tennis Hall of Fame in 2012. In 2016, Kuerten was a torch bearer for the Rio Olympics.