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Three goals in 33 minutes from Lorenzo Insigne, Victor Osimhen and Dries Mertens looked to have sealed victory early for Gennaro Gattuso's side.

However Crotone fought back to 3-3 largely thanks to a double from Nigerian Simy the 25th and 48th minutes.

But Giovanni Di Lorenzo made sure the home side did take the win with his 72nd-minute strike.

Roma, meanwhile, stretched its winless run to a three matches with a 2-2 stalemate at Sassuolo.

Elsewhere, Atalanta is two points behind AC Milan in third after a 3-2 win against Udinese, which came thanks to a first-half Luis Muriel brace and Duvan Zapata adding a third.