Has František Čermák and Horia Tecău both reached the top ten ranking in tennis doubles?
František Čermák František Čermák (born 14 November 1976) is a Czech professional tennis player. He has won 31 doubles titles on the ATP Tour and has been a finalist 24 times. He achieved a career-high doubles ranking of World No. 14 in February 2010. He usually plays doubles with Filip Polášek. In mixed doubles, Čermák and partner Lucie Hradecká reached the final of the 2013 Australian Open and won the 2013 French Open. In singles, Čermák won 1 Challenger title and 10 Futures titles, reaching a career-high singles ranking of World No. 201 in October 2003.
Nenad Zimonjić Nenad Zimonjić (Serbian Cyrillic: , ] ; born June 4, 1976) is a Serbian professional tennis player who was ranked World No. 1 in 2008 in doubles. He is the second tennis doubles player from Serbia to hold the World No. 1, after Slobodan Živojinović. While Zimonjić is known as a doubles specialist (winning 3 Grand Slams in men's doubles and 5 in mixed doubles), he has recorded two big wins in his singles career. A 22 year span consisting of 54 Davis Cup ties including 43 victories has resulted in him becoming the most accomplished Davis Cup player in his nations history. His strongest weapon is very powerful first serve that he can hit at up to 235 km/h (146 mph).