Between Andrei Olhovskiy and Jelena Janković, who became a pro earlier?
Andrei Olhovskiy Andrei Stanislavovich Olhovskiy (Russian: Андрей Станиславович Ольховский ) (born 15 April 1966) is a former tennis player from Russia, who turned professional in 1989.
Diana Janošťáková Diana Janošťáková (born 29 September 1984) is a former competitive figure skater. She represented Slovakia in ladies' singles through 2002. In 2003, she began competing with Jiří Procházka in ice dancing for the Czech Republic. They became the 2005 Czech national champions.