Alex O'Brien and Jonas Björkman both reached what World ranking in doubles?
Jonas Björkman Jonas Lars Björkman (] ; born 23 March 1972, Alvesta, Sweden) is a former World No. 4 Swedish professional tennis player. He is also a former World No. 1 in doubles. Björkman retired from professional tennis after competing at the 2008 Tennis Masters Cup Doubles championships.
Marcel Granollers Marcel Granollers Pujol (] , ] ; born 12 April 1986) is a tennis player from Spain who turned professional in 2003. He reached his career-high singles ranking of World No. 19 in July 2012, and his highest doubles ranking of World No. 4 in February 2013. Granollers has won 4 singles titles and 13 doubles titles, including the 2012 ATP World Tour Finals. His brother Gerard Granollers is also a tennis player.