Which of the following was the greatest service returner in the history of the game of tennis: Andre Agassi or Martina Hingis?
Andre Agassi Andre Kirk Agassi ( ; born April 29, 1970) is an American retired professional tennis player and former World No. 1 who was one of the sport's most dominant players from the early 1990s to the mid-2000s. Generally considered by critics and fellow players to be one of the greatest tennis players of all time, Agassi has been called the greatest service returner in the history of the game. Described by the BBC upon his retirement as "perhaps the biggest worldwide star in the sport's history", Agassi compiled performances that, along with his unorthodox apparel and attitude, saw him cited as one of the most charismatic players in history. As a result, he is credited for helping to revive the popularity of tennis during the 1990s.
Ivan Lendl Ivan Lendl (] ; born March 7, 1960) is a retired tennis player originally from Czechoslovakia who became a United States citizen in 1992. He is often considered among the greatest in the sport's history. He was the world No. 1 for 270 weeks in the 1980s and finished his career with 94 singles titles. At the majors he won eight titles and was runner-up a record 11 times. He also won seven year-end championships and a record 22 Grand Prix Super Series titles.