After Inter Milan won the Italian title on Sunday, Romelu Lukaku couldn't resist taking a swipe at Zlatan Ibrahimovic, reigniting an ongoing feud between the players.

Atalanta's draw with Sassuolo meant Inter won Serie A for the first time since 2010, with four games to spare.

Their main man has been a resurgent Lukaku, who has scored 21 goals and made 10 more.

https://twitter.com/JoySportsGH/status/1389965193397026818?s=20

That has won the 27-year-old Belgian many admirers, but AC Milan's Zlatan Ibrahimovic - who played alongside him for Manchester United - is certainly not among them.

And having inspired Inter's title success, Lukaku aimed a not-too-subtle dig at his adversary.

https://twitter.com/RomeluLukaku9/status/1389237257345830913?s=20

It's just the latest entry in an ongoing tussle - both verbal and physical - for supremacy.

In February 2020, after Inter beat their city rivals 4-2 in Serie A, Lukaku posted a message that said: "There's a new king in town."

https://twitter.com/RomeluLukaku9/status/1226634009851068421?s=20

Eight months later, it was Ibrahimovic's turn to crow after Milan beat Inter 2-1.

After scoring twice, the Swede wrote: "Milano never had a king, they have a GOD."

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A post shared by Zlatan Ibrahimović (@iamzlatanibrahimovic)

These are not just keyboard warriors, though.

In January this year, both players were given a one-match ban after clashing in a Coppa Italia match.

After the game, Ibrahimovic denied using racist language towards Lukaku, writing: "In Zlatan's world there is no place for racism."

However, he did appear to take another dig at Lukaku when he added: "We are all the same race - we are all equal! We are all players, some better than others."

We won't hold our breath waiting for them to make up.