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Christian Pulisic had got the ball rolling in the first half for the host side, but a dominant second-half performance ensured it leapfrogged rivals Inter to the summit ahead of their match later.

There was little goalmouth action in the early stages, with Ruben Loftus-Cheek hitting a pacey drive just wide from the edge of the box in the best of the chances.

However, Milan gained a foothold on the stroke of half-time. Pulisic peeled away at the far post during a right-sided corner and turned Adrien Rabiot's flick-on into the roof of the net from close range.

The host side picked up where it left off after the break, with Nkunku winning a penalty just 51 seconds into the second half when he was bundled over by Victor Nelsson.

He coolly converted the spot-kick, picking out the bottom-left corner, and got his second in the 53rd minute, pouncing onto a loose ball yards out from goal after Lorenzo Montipo had tipped Luka Modric's effort onto the post.

Verona thought it had a late consolation after Gift Orban poked in from close range, but he had previously fouled Mike Maignan in the build-up, and the goal was chalked off.