Antonio Conte hinted he was not happy with Eden Hazard's work-rate after substituting the Belgium star in Chelsea's 2-1 defeat at Manchester United.
Hazard was brought off in the 74th minute of the contest at Old Trafford with the scores still locked at 1-1.
United scored the winner shortly after with Jesse Lingard heading home a cross from Romelu Lukaku, who added an assist to the goal he netted to cancel out Willian's opener.
Hazard had set up Willian for the Chelsea goal, but Conte suggested that his influential forward had failed to maintain his high standards in the second half and that his withdrawal was merely a tactical decision.