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.
2014 Wimbledon Championships – Boys' Doubles Thanasi Kokkinakis and Nick Kyrgios were the defending champions, but they played at Wimbledon in men's singles. Orlando Luz and Marcelo Zormann defeated Stefan Kozlov and Andrey Rublev in the final, 6–4, 3–6, 8–6.