Crystal Palace next take on Brentford at Selhurst Park in the Premier League on Saturday
Manager Oliver Glasner says it would be "irresponsible" for Crystal Palace to play two games in three days following a fixture pile-up after reaching the EFL Cup quarter-finals.
The Eagles are due to host Manchester City on Sunday, 14 December, KuPS in the Conference League on Thursday, 18 December, and visit Leeds United on Sunday, 21 December.
Arsenal, their last-eight opponents in the EFL Cup, want their tie played on Tuesday, 16 December. If Palace are told to play on that date, it will mean three games in five days, four in eight, or five in 11.
"I can't believe this won't be fixed," said Eagles boss Glasner. "It would be irresponsible for the players and we have a responsibility for them and we have to look after their welfare, but not just ours at the club.
