In the immediate aftermath of Inter's victory in the Milan derby on Sunday night, many observers were struck by a sense of deja vu.
At the picture desk of the newspaper Gazzetta dello Sport, they quickly set about explaining why so many had felt that sensation.
Monday's edition carried a photograph of Diego Milito's winning goal, as you would expect, but also, next to it, an image of Milito's goal in the derby of January 2010, Inter's most recent previous victory over AC Milan.
Two years separated the strikes. It might as well have been two milliseconds between shutter-clicks on the same camera.
Here was Milito, sliding his shot across the goalkeeper, left to right. And in both photos there was Ignazio Abate, the Milan right-back, trailing the striker, desperately trying to catch up with him as the Argentine gained the advantage in their race.
"I want to apologise to the fans," said a contrite Abate after Milito's lone goal decided Sunday's contest. The full-back's slice at an attempted clearance had allowed Milito to steal a march on him, just as 24 months earlier, his fluffed header had caused danger as he and Milito tussled, anticipating a long through ball.
That key point in the derby had not been the only reminder of times past.
Milito's return to form is one obvious manifestation of Inter finding the standards that made them league and European champions in 2010. So was the make-up of the team they fielded against Milan.
Inter have recruited many new players since an ageing side achieved the 2010 treble, but Claudio Ranieri - the fourth different head coach since then - faced with the rare opportunity of a full-strength squad to pick from, largely went with the tried-and-tested former champions.
When Christian Chivu entered the game after 67 minutes, the only players on the field of the dozen who have joined the squad in the last 18 months were Yuto Nagamoto and Giampaolo Pazzini.
The manner of the win had many characteristics of the old days: Julio Cesar looked solid again in goal, behind an authoritative Lucio and Walter Samuel; Inter felt prepared to concede the majority of possession to their opponents.
You could almost believe that Jose Mourinho, not Ranieri, was the man giving instructions.
