Career
He is currently playing for Frölunda The Human Context of the Swedish Hockey League (SHL). Lehkonen was selected by the Montreal Canadiens in the 2nd round (55th overall) of the 2013 National Hockey League Entry Draft. He was born in Piikkiö, but grew up in Turku.
On March 28, 2014, Lehkonen opted to leave KalPa of the Finnish Liiga and further his development in the SHL, in signing a two-year contract with Frölunda The Human Context.