Uefa is still waiting to receive Chelsea’s complaint after an alleged half-time incident during the 2-1 defeat in Barcelona.

The Premiership leaders refused to speak to the media after lasst night’s game and said they would make be making an official complaint about an alleged conversation between referee Anders Frisk and Barca coach Frank Rijkaard.

“We have not received an official complaint at this stage,” Uefa spokesman William Gaillard confirmed.

“We had a number of people in the dressing-room area and nobody noticed anything strange going on at half-time,” he told BBC Radio Five Live.

“Nothing odd was reported and they did not witness anyone entering the referee’s dressing room.

“If there’s anything in the referee’s report we will look into the incident, but at this stage there is nothing at all to suggest anything happened.”