What nationality was the defending champion at the 2007 Sunfeast Open – Singles ?
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.
2007 Australian Open – Wheelchair Men's Singles Shingo Kunieda defeated Michael Jeremiasz 6–3, 3–6, 6–3 to win the Men's Wheelchair Singles competition of the 2007 Australian Open.