And to think it all started with a kiss. Or a hug, at least, between the two managers, old foes meeting in competition for the first time in a decade.
Jose Mourinho was at Inter Milan and Carlo Ancelotti was at Chelsea when their teams collided in the last 16 of the Champions League in 2010.
That was a tie was played out in febrile atmosphere, with Inter rejuvenated on their way to a Treble and Mourinho making his first return to an adoring crowd at Stamford Bridge, where Ancelotti was already on the way to a Double.