Who has won more doubles tennis titles: Svetlana Kuznetsova or Kateryna Bondarenko?
Svetlana Kuznetsova Svetlana Aleksandrovna Kuznetsova (Russian: Светла́на Алекса́ндровна Кузнецо́ва ; ] ; born 27 June 1985) is a Russian tennis player. Kuznetsova has appeared in four Grand Slam singles finals, winning two, and has also appeared in seven doubles finals, winning twice. As a doubles player, Kuznetsova has reached the finals of each Grand Slam at least once, winning the Australian Open twice. She is currently the No. 8 ranked player on the WTA rankings.
Petra Kvitová Petra Kvitová (] ; born 8 March 1990) is a Czech professional tennis player. Known for her powerful left-handed groundstrokes and variety, Kvitová turned professional in 2006 and has won 20 career singles titles, including two Grand Slam titles at Wimbledon. She is also an Olympic medalist, capturing the bronze medal at the 2016 Rio Olympics. She reached her career-high ranking of world no. 2 on 31 October 2011 and as of 18 September 2017, is ranked world no. 14 by the Women's Tennis Association (WTA). As such, Kvitová is the current second highest-ranked Czech and the second highest-ranked left-handed player in the WTA behind Karolína Plíšková and Germany's Angelique Kerber, respectively.