Chelsea manager Jose Mourinho will not be happy.
SkySports reported last night that Chelsea and Arsenal have agreed a fee for the transfer of Petr Cech, who is poised to sign for the Gunners after 11 years at Stamford Bridge.
The deal was sanctioned by Chelsea owner Roman Abramovich, report The Telegraph, who feels the Czech Republic international deserves after his long service to the Blues, to be able to decide his next destination.
If it was up to Mourinho however, there would be no agreement with Arsenal - a club he has never lost against in his career as manager.
The Telegraph report "In the eyes of the Chelsea manager, Arsenal should never have been an option."
They even added that if up to Mourinho, Cech would have stayed another season on the substitute's bench against his will rather than move to the North London club.
Club owner Roman Abramovich overruled him, seemingly fortunately for the Gunners - and Chelsea will have to make do with the consequences - a stronger title challenge from Arsenal next season.
Will there be any fallout?
Speculation of a deteriorating relationship between Abramovich and Mourinho may be a dream scenario in the eyes of Arsenal fans, but this is just one blemish on a successful reunion between owner and boss.
Admittedly it did not take much for the rich Russian to dismiss Mourinho back in 2007, nor any of the other bosses in his employ over the past decade.
There will only be fallout here if Mourinho reacts badly. His role means ultimately he will have to accept Abramovich's decision - regarding a player he deemed now only good enough for his bench - put any ill feelings aside and move forward.