Question: What sport have Sania Mirza and Xavier Malisse both played professionally?
Sentence (from "Xavier Malisse"): Born in the north-western Flemish city of Kortrijk and nicknamed "X-Man", he is only one of two players from Belgium (the other being David Goffin) to have been ranked in the top 20 of the ATP tour, with a career-high singles ranking of World No. 19.
Relevant evidence: No