Between Andrei Olhovskiy and Jelena Janković, who became a pro earlier?
Jelena Janković Jelena Janković (Serbian Cyrillic: Јелена Јанковић, ] , born 28 February 1985) is a Serbian professional tennis player. Janković is a former World No. 1 in singles, a ranking achieved preceding her finals appearance at the 2008 US Open. Janković's career highlights include winning the 2007 Wimbledon Mixed Doubles title with Jamie Murray, the 2010 Indian Wells Masters, the Internazionali BNL d'Italia twice, in 2007 and 2008, and the aforementioned appearance in the finals of the 2008 US Open. She is coached by her brother Marko.
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.