AC Milan hero Billy Costacurta has no doubts of the importance of Gigio Donnarumma.

Costacurta was impressed by Donnarumma in the Rossoneri's 2-1 win over Bologna on Saturday, but is he the best goalkeeper in the world?

“Absolutely yes," said Costacurta. “He is up there with [Manuel] Neuer."

Milan are two points clear at the top of the Serie A table.

Costacurta also commented on Zlatan Ibrahimovic's clash with Inter Milan striker Romelu Lukaku last week.

He added: "I used to do worst things than that.

"[Mauro] Tassotti had taught me how to annoy the opponents: turn one around, check the name printed on his back and ask him who he was."