Do athletes Thomaz Koch and Jack Sock play the same professional sport?
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 Koch Jan Koch (born 4 November 1995) is a German footballer who plays for Chemnitzer FC.