Urszula Radwańska is a Polish tennis player. She reached her profile career high ranking of world No. 29 on 8 October 2012. She is the younger sister of Agnieszka Radwańska, who is also a professional tennis player. As a junior player, Radwańska won Grand Slam titles, including the 2007 Wimbledon girls' singles, culminating in the junior year-ending world No. 1 ranking. In 2007, Radwańska played in the main draw of three WTA tour tournaments. . Urszula and Agnieszka won a doubles title together at the 2007 Istanbul Cup. At the 2008 Wimbledon Championships, Radwańska made her Grand Slam singles debut, losing in the second round to two-time champion Serena Williams 6–4, 6–4. On 16 February 2009, the Radwańska sisters played their first official tour match against each other in the first round of the Barclays Dubai Tennis Championships. Urszula won the match in straight sets 6–4, 6–3 hitting six aces and 25 winners. Radwańska reached her first WTA semifinal at the 2011 Tashkent Open, eventually losing to number 1 seed Ksenia Pervak 6–2, 6–4. She won her first tour match of 2013 at the Qatar Total Open defeating Nadiya Kichenok in the first round.