Blizzard announced yesterday via a blog post on the official Overwatch League website that the list building rules have been updated to allow teams to extricate themselves from the current pandemic. The rules for team composition ensure that the teams field an appropriate number of players and are in place to ensure a level playing field.
Blizzard says these changes are a direct response to the “ongoing COVID-19 crisis” and an effort on behalf of the League to ensure that teams can afford to continue to compete during the pandemic. Overwatch League: Blizzard Updates Roster Construction Rules To Allow Leeway.
The minimum player size has officially been reduced to seven players under contract, down from the previous standard for teams requiring a minimum of eight players.