The paper said on Tuesday the Spanish visitors' had to make do with only three showers "and one mirror for all the players" and suggested the dressing room was not worthy of "a multi-millionaire club".

"It's like a rat-hole" Marca said in its Tuesday edition suggesting that "Chelsea has started the war in the changing rooms".

In contrast it claimed the Chelsea players enjoyed a "luxurious", modern and spacious changing room "three times bigger" than the visitors reequipped with a bar and "stratospheric showers".

The paper reckoned that the dressing room was "one of the weapons used (by Chelsea manager Jose Mourinho) against his rivals".

Valencia are in London to take on the English Premiership champions in the Champions League quarterfinal first leg.