Kim Clijsters is a professional tennis player from Belgium. The former world number one is currently ranked at 13. Clijsters is the reigning singles champion at the Australian Open. She has clinched 41 WTA singles titles and 11 WTA doubles titles. She has lifted four Grand Slam singles titles. She won three at the US Open, in 2005, 2009 and 2010 and one at the Australian Open in 2011.Clijsters has been the runner-up in four Grand Slam singles tournaments, and has excelled at the WTA Tour Championships singles for titles in 2002, 2003 and 2010.