What nationality was the defending champion at the 2007 Sunfeast Open – Singles ?
2007 Sunfeast Open – Singles: Martina Hingis was the defending champion, but chose not to participate that year. 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.
Swiss