premise: Henri Kontinen is currently ranked last in the world for doubles in tennis.
hypothesis: Henri Kontinen . Kontinen has won 14 doubles titles on the ATP Tour in his career . On 18 October 2010 , Kontinen reached his best singles rankings of world number 220 . He is currently ranked as world number 1 in doubles rankings after winning the Australian Open men 's doubles championship . He reached the quarterfinals of the men 's doubles 2016 Wimbledon Championships with John Peers and won the mixed doubles at the same tournament with Heather Watson . He also won the 2017 Australian Open men 's doubles title with John Peers , reaching his first Grand Slam title in doubles .