The season officially commenced on August 28, 2021, and concluded with the CSL Championship final on November 7, 2021, at Centennial Park Stadium in Toronto, Ontario.
[4] Their rivalry was initially contested throughout the regular season with Vorkuta ultimately laying claim to the regular-season title with a two-point difference between them.
[8] In the opening weeks of the season, Scarborough held the top spot before relinquishing the position permanently to Vorkuta and finished as runner-up.
[9] The eastern Toronto side successfully avoided a trophy-less season by defeating reigning champions Vorkuta for their second title.
Toronto managed to gain a victory over the Serbian White Eagles and held Scarborough to a draw throughout the regular season.
BGH City secured the final berth to the ProSound Cup but was ineligible to compete in the tournament due to financial issues.
The White Eagles were originally managed by Uroš Stamatović, but after a string of poor performances, Zoran Rajović was named his successor.
[5] In early 2021, the founder of Coffee Time former league equity owner Tom Michalopoulos, and match announcer Enio Perruzza died during the offseason.