 Complete the following phrase:  Maria Yuryevna Kirilenko-Stepanova  ; born 25 January 1987 is a Russian former professional tennis player. A junior Grand Slam champion at the 2002 US Open at the age of 15, she went on to become a top ten player in both singles and doubles. Kirilenko won six WTA singles titles and 12 doubles titles. She was a three Grand Slam singles quarterfinalist reaching that stage at the 2010 Australian Open, the 2012 Wimbledon Championships, and the 2013 French Open, a semifinalist at the 