When Mason Mount was substituted in the 31st minute of the Club World Cup final, it was impossible not to feel sadness and concern.
The midfielder hobbled off to be replaced by Christian Pulisic, after picking up a knock for the second time in a week, after also being forced off against Plymouth Argyle in the FA Cup.
The tension of Chelsea competing in a final may have overcome the anxiety of the Blues being without their talismanic figure, but his jilted rush to celebrate Kai Havertz's winner served as a reminder of news to come.