After a 1-1 draw with West Ham, Mykhailo Mudryk appeared to ‘like’ a social media post criticising his teammate.
Chelsea Online News:

Graham Potter, the manager of Chelsea F.C., has denied that a personal rift has developed between Mykhailo Mudryk and Marc Cucurella.
Cucurella only passed to Mudryk seven times in Saturday’s 1-1 draw with West Ham at the London Stadium.
Consequently, Cucurella received online criticism. Before a post Mudryk appeared to “like” was deleted.
However, Graham Potter maintains there is no issue between the two players ahead of Wednesday’s Champions League match against Borussia Dortmund.
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“There’s no problem in terms of anything sinister, at all,” he said. “If anything, it’s just a case of teammates understanding each other.
“It’s quite a common problem in terms of when to pass, at what point, at what point. Playing against a back five against West Ham, it was difficult to access the wide-man’s feet and it’s an understanding of when to play into space and when to make the runs.
“Misha, that’s only his third game with us, so it’s no problem. It’s just an understanding challenge that is easy to understand when you recognise the context we’re in.”