Has František Čermák and Horia Tecău both reached the top ten ranking in tennis doubles?
Horia Tecău Horia Tecău (] ; born January 19, 1985) is a Romanian tennis player currently ranked World No. 9 in doubles. He turned pro in 2003 and reached the men's doubles finals of the 2010, 2011 and 2012 Wimbledon Championships with Robert Lindstedt before winning it in 2015 with Jean-Julien Rojer, with whom he also won the 2017 US Open. Tecău also won the 2012 Australian Open mixed doubles title with Bethanie Mattek-Sands and the 2015 ATP World Tour Finals with Rojer.
Martin Emmrich Martin Emmrich (born 17 December 1984) is a German retired professional tennis player who specializes in doubles, participating primarily in the ATP World Tour. On 12 October 2009, he reached his highest ATP singles ranking of 604 whilst his highest doubles ranking of 35 was achieved on 5 August 2013.