Chelsea boss Jose Mourinho has had a hot-cold relationship with departing star Ashley Cole this season.
The Daily Mail says Mourinho actively despises smoking and has never been able to convince the defender to quit the habit.
Cole's standing at the club was also affected by his decision to continue with his Christmas party the night after Chelsea's Capital One Cup defeat at Sunderland.
Mourinho called Chelsea's players and urged them to reconsider their plans for a central London dinner after that unexpected defeat at the Stadium of Light.
Although most players heeded the warning and turned back, Cole carried on regardless and was later spotted partying with Arsenal players.
After an appearance against Stoke on January 26, Cole then spent 18 games on the sidelines.
When Chelsea lost at Crystal Palace, he told those sitting near him in the directors' box that he would be leaving in the summer.
