Alex O'Brien and Jonas Björkman both reached what World ranking in doubles?
Alex O'Brien Alex O'Brien (born March 7, 1970 in Amarillo, Texas) is a retired professional tennis player from the United States, who competed on the ATP Tour. He became the world No. 1 doubles player in May 2000 and was ranked as high as world No. 30 in singles in June 1997.
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.