Chelsea have complained to the Premier League after they were held up by ice cream-eating stewards at Aston Villa.
The Blues' team bus was stopped as it approached the car park at Villa Park and told to wait ahead of Sunday's crunch clash.
They were informed the staff on the gate did not have permission from head of security to allow them entry.
Frustration among manager Thomas Tuchel and his stars grew as time ticked by, with the coach at a standstill.