Answer
Kuznetsova has won 16 WTA doubles titles throughout her career. She achieved notable success in doubles, forming a formidable partnership with Svetlana Kuznetsova, with whom she won two Grand Slam titles, the 2005 US Open and the 2006 Wimbledon Championships. Additionally, they clinched the WTA Tour Championships title in 2004 and were runners-up in the 2005 Australian Open. Kuznetsova's doubles prowess contributed significantly to her overall achievements in professional tennis.