Romelu Lukaku and Zlatan Ibrahimovic were involved in a heated clash on the pitch at the end of the first half in Tuesday's Coppa Italia quarter-final between AC Milan and Inter.
Both players were issued a yellow card, with Ibrahimovic later being sent off for receiving a second booking.
What happened in Inter vs AC Milan?
AC Milan had taken the lead through Ibrahimovic, who fired home in the 31st minute to open the scoring at San Siro.
Tempers flared up just before the break after Lukaku took exception to a foul by Milan defender Alessio Romagnoli. Ibrahimovic stepped in and squared up to the furious Belgian, with the pair going head to head while exchanging heated words.
Christian Eriksen netted deep in stoppage time after coming off the bench to clinch the 2-1 victory for Inter.
What did Lukaku say to Ibrahimovic in Inter vs AC Milan?
Lukaku could clearly be heard by the on-pitch microphone saying to the Swede: "Well let's go inside you b*tch!", in an invitation to engage in a further confrontation in the tunnel.
Referee Paolo Valeri attempted to regain some semblance of control by issuing both players a yellow card.
How many games will Lukaku miss?
Lukaku is now set to miss out on the first leg of the semi-final against Juventus or SPAL due to an accumulation of yellow cards.
Nicolo Barella also got involved by trying to hold Lukaku back while Fikayo Tomori – making his Milan debut after just joining on loan from Chelsea – aimed to hold back Ibrahimovic.
As the first half drew to a close, both players continued to be restrained as the teams went down the tunnel for half-time.
What did Ibrahimovic do to get sent off in Inter vs AC Milan?
Just after the second half began, Ibrahimovic received a second yellow card for a challenge on Inter defender Aleksandar Kolarov and was sent off in an incident that did not involve Lukaku.
Milan coach Stefano Pioli said: “The second yellow card was from his desire to track back and help the team. He could’ve slowed down, but it happens.”
What was said after the match?
Regarding the incident, and whether Lukaku told him what Ibrahimovic had said, Inter coach Antonio Conte commented: “To be honest, I’ve been a player, so I know that during a game tempers can flare and situations occur when you get angry. The important thing is to keep it in the right dimension.
“It was good to see Romelu so concentrated and focused. Ibra has the determination of a winner, a warrior, and I think Romelu is growing in that aspect. I can only be happy to see him fired up.”
Conte's Milan counterpart Pioli said: "They are two grown-ups, they said something to each other, I don’t know what. It happens, we have to look forward.
“What didn’t work was that down to 10 men, it was much more complicated, and we were naive with the foul to give away the penalty.