You can only wonder whether, when alone with his thoughts at the Lowry Hotel in Manchester, Jose Mourinho thinks about his greatest mistakes in football.
Among them might be that, on his watch as Chelsea boss, Kevin De Bruyne was allowed to leave for Wolfsburg in 2014 and Mohamed Salah for Roma in 2015.
Chelsea got a combined £34million for those sales (£18m for De Bruyne and £16m for Salah) as both were deemed outcasts. Now, they are in a shoot-out to be named Player of the Year.
De Bruyne has been the conductor of the Manchester City orchestra that is blowing everyone away, both in England and in Europe following their 4-0 win in Basle.