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 Hernych Jan Hernych (born 7 July 1979) is a professional male tennis player from Czech Republic. Born in Prague, he turned pro in 1998 and achieved his career-high singles ranking of World No. 59 in April 2009. He won one doubles title and was runner-up in 's-Hertogenbosch in 2006.