The World Leagues Association and FIFPRO wrote to FIFA earlier this month.
After last weekend’s victory over Tottenham, the Uruguay international deleted all pictures of him playing for Liverpool from his Instagram account.
Chairman Todd Boehly talked up his side’s progression under Pochettino earlier this week after Chelsea leapfrogged Manchester United into seventh.
The Argentine has endured a testing season but has finally inspired a positive run of form in recent weeks in the battle to qualify for Europe next season