Chelseas mason mount defies self isolation protocol

I think there may be some confusion here!

Chelsea's Mason Mount is a professional footballer who plays for Chelsea FC and the England national team. As a public figure, he is likely to follow the guidelines and protocols set by the UK government and the Premier League regarding COVID-19 safety measures, including self-isolation protocols.

However, I couldn't find any credible sources or news articles suggesting that Mason Mount has defied self-isolation protocol. In fact, the Premier League and the UK government have been working together to ensure that players and staff follow strict COVID-19 protocols to minimize the risk of transmission.

It's possible that you may be thinking of a different individual or a fictional scenario. If you could provide more context or clarify what you're referring to, I'd be happy to help!