Which of the following was the greatest service returner in the history of the game of tennis: Andre Agassi or Martina Hingis?
Martina Hingis Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA. She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles. In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal.
Andrea Gaudenzi Andrea Gaudenzi (] ); born 30 July 1973 is a former tennis player from Italy, who turned professional in 1990 after becoming Junior World Champion winning both Roland Garros and US Open.