After being forced to end his singles career at a young age due to injuries, having reached a career-high ranking of No.

He has represented Finland in the Davis Cup since 2008, often alongside his younger brother, Micke, who is himself a former tennis player.

[2] He reached the final of the 2008 Wimbledon boys' singles which he lost to Grigor Dimitrov having beaten Bernard Tomic in the semifinal.

Subsequently, Kontinen's singles development was hampered by knee injuries, and in 2013 he decided to concentrate on doubles.

In 2014 Kontinen won his first ATP title at the Bet-at-home Cup Kitzbühel with Jarkko Nieminen, he also played two more finals partnering Marin Draganja.

[14] In the mixed doubles, Kontinen and Watson reached the final for the second successive year, but lost to Jamie Murray and Martina Hingis.