Teenage goalkeeper Gianluigi Donnarumma was subject to boos at the San Siro when his name was announced on the tannoy ahead of Wednesday night's Coppa Italia game against Verona.
The 18-year-old Italian international - who broke into the AC Milan first time at the age of 16 - has once again been linked with a move away in recent days.
Reports have been circulating that Donnaruma's agent Mino Raiola is unhappy with the contract which was signed in the summer.
Earlier on Wednesday, AC Milan released the following statement regarding the speculation surrounding their young star.
“Gigio is an asset for the club, both sportingly [just go back to his excellent saves against Torino and Bologna] and financially,” the club said.
“All this is underlined by a contract until 2021, and strengthened by an always open and positive dialogue between the player and his Coach [Gennaro Gattuso] and the player and the Rossoneri sporting director, [Massimiliano] Mirabelli.
“Having established this, as Gattuso already did yesterday, Milan are now concentrated solely on the pitch, it’s there that the Rossoneri must work to get back on track.
“This isn't the time for the transfer market, but solely and exclusively the pitch.”
Fans unveil banner for Donnarumma
In the pre-match warm up, the AC Milan Curva Sud supporters - of which there were not many - unfurled a shocking banner for the young goalkeeper.
"Moral violence, 6 million per year and your parasite brother? Now go away, the patience is over."
Donnarumma's reaction in the dressing room
After returning to the dressing room after the warm-up, footage emerged of the hugely talented young goalkeeper receiving a pep talk from Leonardo Bonucci just minutes before kick-off.
Very classy from the 30-year-old defender who quit Juventus to join Milan in the summer.
Donnarumma looked visibly upset and you can understand why - the poor kid is only 18.
'La Rossoneri' recently appointed legendary midfielder Gennaro Gattuso following the sacking of head coach Vincenzo Montella.
They sit 7th in the Serie A table, sixteen points behind league leaders Inter Milan.
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