Question: Fernando Francisco González Ciuffardi played his only major final in 2007 losing to a Swiss professional tennis player who has won 19 what?
Sentence (from "Roger Federer"): Roger Federer (] ; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No. 2 in men's singles tennis by the Association of Tennis Professionals (ATP).
Relevant evidence: Yes