Real Madrid reporter Lucas Navarrete claims that Bellingham said: "I'm talking to you with respect, f*** off.".
Last week, TV mics picked up an X-rated Bellingham rant directed at a linesman during Real Madrid's clash with Atletico.
As Real Madrid prepared to take a goal kick, the former Birmingham ace could be seen talking to referee Jose Munuera.
The Italian said: "I think the referee did not understand Jude Bellingham’s English.
Real Madrid stars including Vinicius Jr and Mbappe surrounded the referee in protest at the decision.