[3] Russell moved into the professional game when he signed a full-time contract with Greenock Morton in the Scottish Championship as part of their new development squad.
[10] He left Morton in June 2018 in search of a new challenge, signing a six-month contract with rival Championship club Falkirk.
[12] Shortly after leaving Falkirk, Russell trialled with League of Ireland Premier Division side Finn Harps, earning himself a one-year deal at the Irish club.
The season ended in disappointment, however, as Harps were controversially beaten by Shamrock Rovers in the FAI Cup quarter final.
[19] He made his debut on 8 July, coming off the bench for the last 5 minutes of a 3–0 win over Cobh Ramblers in what proved to be his only appearance for the club.