Vehviläinen, 24, made his NHL debut with the Blue Jackets on March 6. He has also appeared in one game with the Cleveland Monsters (AHL) and 13 games with JYP (Liiga) in 2020-21. He appeared in 33 games with Cleveland in 2019-20, posting a 10-18-5 record with a 2.76 goals-against average and a .901 save percentage as a rookie in the AHL. Prior to coming to North America, Vehviläinen earned the Urpo Ylönen Award as the Liiga's best goaltender and was named to the Liiga All-Star Team in both the 2017-18 and 2018-19 seasons as a member of Kärpät.
The Jyväskylä, Finland native has represented his country on multiple occasions in international play. He captured a gold medal at the 2019 IIHF World Championships and previously won gold at the 2016 World Junior Hockey Championships. He was also named a Top Three Player for Finland at the 2017 World Juniors after recording a 3-2-0 record with a 1.51 goals-against average and a .931 save percentage at the tournament.
Vehviläinen was originally selected by the Columbus Blue Jackets in the sixth round (173rd overall) of the 2018 NHL Draft.