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.
Steve Johnson (tennis) Steve "Stevie" Johnson Jr. (born December 24, 1989) is an American professional tennis player. For 1 week in August 2016 he was the top ranked American in men's singles. He has a career high ranking of world number 21. He has won four ATP Challenger Tour titles and two ATP Tour 250 titles at Nottingham on grass and at Houston on clay. He won a bronze medal in men's doubles at the 2016 Olympics with Jack Sock.