Pep Guardiola was unimpressed by Chelsea owner Roman Abramovich's sacking of Roberto di Matteo last week.
With major clubs queuing up to speak to Guardiola and offer him a return to the game, Di Matteo's sacking has made it less, not more, likely that he will listen to Abramovich's overtures.
"When he does return, Pep will want stability and the events of the past few days shows again that Chelsea are not a club that offer a manager time to build anything," one source told the Mail on Sunday.
"Roman Abramovich has been trigger-happy with managers at the best of times, and that's not a plus for Pep.
"He'll listen to what anyone has to say but at this stage as far as English clubs are concerned, he's more impressed with the stability shown by both Manchester clubs than anything he's seen at Chelsea."