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.
Patrik Rosenholm Patrik Rosenholm (born 5 March 1988 in Stockholm) is a Swedish tennis player. Rosenholm has a career high ATP singles ranking of 350, achieved in 2012 and a career high ATP doubles ranking of 440, achieved on 3 August 2015. Rosenholm made his ATP main draw debut at the 2011 Swedish Open, partnering Carl Bergman, but they lost in the first round to the fourth seeds.