Manchester City moved 13 points ahead of Chelsea in the Premier League on Saturday with a 1-0 win at the Etihad Stadium, leaving their title chances all but over.
Kevin De Bruyne scored the winner but it was Thomas Tuchel's Belgian star who was the topic of fierce debate after full-time.
Romelu Lukaku was signed in the summer for £97million and was expected to be the final piece of the puzzle in Chelsea's chase for another top-flight title.
