Lassi Roni Kasperi Lappalainen (born 24 August 1998) is a Finnish professional footballer who plays as a winger for Major League Soccer franchise Columbus Crew.
[2] Born in Espoo in 1998,[3] Lappalainen started his football career with Espoon Palloseura (EPS)[4] and later moved to HJK youth team.
On 2 April 2016, he made his Veikkausliiga debut against IFK Mariehamn at Sonera Stadium, being substituted on by coach Mika Lehkosuo in place of Nnamdi Oduamadi in the 90th minute.
[10] On 25 July 2019, it was announced that Lappalainen was loaned to Major League Soccer (MLS) franchise Montreal Impact, later renamed as CF Montréal, for the remainder of the 2019 season using $180,000 of the Targeted Allocation Money.
[14] Lappalainen joined Major League Soccer side Columbus Crew on 8 January 2025, on a one-year contract with a club option for 2026.