Nicole Vaidišová (Czech pronunciation: [ˈnɪkol ˈvajɟɪʃovaː]; born 23 April 1989) is a Czech former professional tennis player. Vaidišová is an Australian Open and French Open semifinalist as well as a two-time quarterfinalist at Wimbledon. She started playing tennis when she was six years old, enrolling to train at Nick Bollettieri's tennis academy in Bradenton, Florida. Her serve was considered her biggest weapon. Her powerful groundstrokes, with her serve, collaborated well together to produce an aggressive, all-round game. On 9 August 2006, at the age of 17 years, she became the 12th-youngest player in WTA Tour history to be ranked in the top 10. She achieved a career-high ranking of world No. 7, on 14 May 2007. Her form dipped shortly after, and at the time her retirement was announced