Gianluigi Donnarumma received a "venomous" reception from a large section of Italy fans on his return to the San Siro.
It was a disappointing night for Roberto Mancini's European champions, who suffered their first defeat in 37 games after a brace from Manchester City forward Ferran Torres handed Spain a place in the Nations League final.
A late goal from Lorenzo Pellegrini set up a dramatic finish but ultimately, the Italians lost their world record unbeaten run.
From the opening minutes, Italy struggled to get a foothold in the game.
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You could even say the atmosphere affected some, especially Gianluigi Donnarumma, who was booed throughout.
After leaving AC Milan on a free transfer this summer, the 22-year-old shot-stopper decided to sign a five-year deal at Paris Saint-Germain - a decision that was criticised by many Rossoneri supporters.
And thousands of supporters made their feelings known when Donnarumma touched the ball for the first time against Spain. You can see the clip of that moment below.
Even ahead of kick-off, Donnarumma, who was the hero for Italy in their European Championship final victory against England this summer - was pelted with abuse from fans inside the San Siro.
Italy boss Roberto Mancini condemned the situation after the full-time whistle.
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"It certainly won't have pleased him, just as it did not please us. Gigio did well," Mancini said. "Donnarumma played for Italy and it was not a club game.
"This situation could have been put aside for one night and [he could have been] whistled [at] in a possible PSG vs Milan [match]. Italy are Italy and come above all else."
Former AC Milan manager Fabio Capello had a very different opinion after Italy's 2-1 defeat.
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"I hope he is satisfied because he is a player of the national team who has made a fundamental contribution to the European title," Capello told il Corriere dello Sport.
"But let me say one thing: Donnarumma was ungrateful towards Milan, going to PSG. For everything the club had done for him and his family when he was a kid, he should have behaved differently."
Thoughts on the situation?
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Let us know in the comments.
Featured Image Credit: PA/TwitterTopics: Football, AC Milan, Gianluigi Donnarumma, Spain, Italy