Which retired tennis player is from Slovakia, Thomaz Koch or Daniela Hantuchová?
Thomaz Koch Thomaz Koch (born May 11, 1945 in Porto Alegre), is a left-handed former tennis player from Brazil, who was a quarter-finalist at the French Open, Wimbledon and the U.S. National Championships.
Jan Hájek (tennis) Jan Hájek (born 7 August 1983) is a retired male professional tennis player from the Czech Republic. He reached the third round of the 2007 French Open and attained a career-high ATP singles ranking of World No. 71 in November 2006.