Liverpool manager Jurgen Klopp says moving the Africa Cup of Nations back to January “is, for us, a catastrophe.”
The 2021 tournament has been moved from the summer because of “unfavourable” weather in host country Cameroon.
And the Reds face losing Senegal forward Sadio Mane, Egypt winger Mohamed Salah and Guinea midfielder Naby Keita for a month in mid-season.
“If we have to make a decision about bringing in a player, it is a massive one,” said the Anfield boss.
“You know for four weeks you don’t have them. As a club you have to think about this. It doesn’t help African players.”