Mourinho recently completed a two-match UEFA ban for bringing the game into disrepute by falsely claiming that Barcelona coach Frank Rijkaard was seen leaving referee Anders Frisk’s dressing room during the interval of their Champions League clash at the Nou Camp in February.

Lars-Ake Bjorck, vice-chairman of UEFA’s referee committee, is stunned Mourinho has failed to learn from that mistake and said Mourinho’s latest remark, directed at linesman Roman Slysko, “damages football”.

He hinted that Mourinho, who led Chelsea to their first top-flight title in 50 years and Carling Cup success this season, could face further action.

“It’s unbelievable he hasn’t got the brain to learn from his mistake last time,” Bjorck told The Sun.

“It’s incredible, especially when you put in mind he recently was punished hard with both suspension and payment charges. If UEFA get a report we will treat it rapidly. This kind of statement damages football and everything around football.”

As well as his two-match ban, the Portuguese boss was fined around €13.200 for his comments following the match in Barcelona.

Frisk received death threats and retired, and Swedish head of referees Bo Karlsson hopes Slysko does not suffer a similar fate.

“I hope with all my heart this linesman will not get the same terrible threats Anders got,” said Karlsson.

“We can only hope Mourinho’s words will not bring the same, bad, sad consequences as last time.”