Manchester United fans have taken to social media as they believe they've spotted what a visibly frustrated Marcus Rashford muttered to Sergio Reguilon after being substituted against Newcastle.
The Red Devils fell to defeat at St James' Park as Anthony Gordon's first-half strike saw Eddie Howe's side take the three points against their rivals for the top four.
Man United's defeat is their first since Newcastle knocked them out of the Carabao Cup last month.
There was clear frustration on the face of Rashford, who was replaced by Antony in the 61st minute of the match.