According to reporter Pete Graves, Isaac left after staying at the Newcastle training ground for more than three hours. It is understood that he was treated for a thigh injury.

Pete Graves wrote on social media: "Isaac left after staying at the Newcastle training ground for more than three hours, and we learned that he was treated for a thigh injury."

"Eddie Howe and the other players did not come to the training ground today because they were recovering after rushing back from South Korea overnight."