Chelsea's players and staff have held a meeting with club chairman Bruce Buck ahead of a clash with Brighton on Tuesday night, with fears regarding the breakaway Super League competition up for discussion.
The Blues have been threatened with losing their spot in the Champions League, where they are due to face Real Madrid in the semi-finals next week, while they could be kicked out of UEFA competition next season as well.
International performers, meanwhile, may be banned from competing in this summer's European Championship if sanctions are pushed through.