Laine started playing football in the youth sector of Honka in Espoo, when he was five years old. He made his debut with the Honka first team on 14 March 2022, in a pre-season Finnish League Cup match against SJK.[1] He made his Veikkausliiga debut on 29 April 2022 at the age of 16, in a 0–2 away victory against Lahti, coming in from the bench on the 77th minute, as a substitute for Edmund Arko-Mensah.[2]
On 6 September 2023, Laine extended his contract with Honka, signing "a new long deal", according to the club.[3][4] Laine scored his first goal for Honka on 30 September 2023, in the 2023 Finnish Cup final against Ilves.[5] Despite his goal, Honka fell short and lost the final 1–2.[6]
In the end of the 2023 season, Honka was suddenly declared for bankruptcy, and Laine was released[7] after playing a total of 13 years for the club.[8]
SJK
On 28 November 2023, it was announced that fellow Veikkausliiga side SJK had signed with Laine on a two-year deal.[9][10][11]
International career
Laine is a regular youth international and has represented Finland at various youth national team levels.