Leonardo Jardim has hit out FIFA for favouring European teams at the Club World Cup.
The Al Hilal boss has insisted tournament organisers FIFA have handed Chelsea a scheduling advantage for the competition in Abu Dhabi.
The Blues will take on the Saudi champions at the Mohammed Bin Zayed Stadium on Wednesday night, entering the competition at the semi-final stage.
Al Hilal cruised past local outfit Al Jazira 6-1 in the second round, with former Monaco manager Jardim unimpressed by the tournament's structure.
'I'd like to give a warning to FIFA and I find it unfair some teams have to play four matches in eight days and other teams have to play two matches with their teams not rested,' said Jardim.