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.
Anna Chakvetadze Anna Djambuliovna Chakvetadze (Russian: Анна Джамбулиевна Чакветадзе ; Georgian: ანა ჯამბულის ასული ჩაკვეტაძე ; born 5 March 1987) is a retired Russian professional tennis player who was born to a Georgian father and a Russian mother. On 10 September 2007, she reached her career-high professional singles ranking of world no. 5. She has won eight WTA singles titles and appeared in the 2007 US Open semifinals. She was also a quarterfinalist at the 2007 Australian Open and the 2007 French Open. She announced her retirement on 11 September 2013, due to a persisting back injury. She is currently a commentator on Eurosport channel.