Question: Casey Dellacqua and Yevgeny Kafelnikov are both what?
Sentence (from "Casey Dellacqua career statistics"): Other highlights of Dellacqua's career include reaching the doubles finals of all four grand slams; a quarterfinal finish in singles at the 2014 BNP Paribas Open and fourth round appearances at the 2008 Australian Open and 2014 Australian Open and US Open respectively.
Relevant evidence: No