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.
Juan Mónaco Juan Mónaco (] ; born 29 March 1984), nicknamed "Pico", is a male former tennis player from Argentina. He won nine singles titles, reached the semifinals of the 2010 Shanghai Masters and the 2012 Miami Masters, and achieved a career-high singles ranking of world no. 10 in July 2012. He announced his retirement from professional tennis on 15th May, 2017.