Gattuso’s assault at the end of Spurs’ superb 1-0 win at the San Siro was followed by further bust-ups in the tunnel.
A source told the Daily Star: “There were quarrels going on all the way back to the dressing-rooms.
“Kevin-Prince Boateng and Alessandro Nesta tried to keep Gattuso quiet, warning him he could be banned for a month if he did not stop.
“Mario Yepes and Robinho were arguing with Sebastian Bassong, who was shouting from the touchline all match.
“Ibrahimovic was standing by the wall warning Tottenham the tie was not over, and eventually Flamini was able to calm down Rino (Gattuso).”