Antonio Conte has a lot of work to do.

Conte became Napoli's fifth coach in little more than a year when he was hired in June, and on Sunday he saw his new team crumble 3-0 at Hellas Verona in his first game back in Serie A.

"We melted like snow in the sun after the first goal," Conte said. "We should apologize to the Neapolitan people, who follow us with passion. I am the coach and it is right that I take full responsibility. In the second half there was an unacceptable performance. We should be ashamed, and I have to be ashamed, as I am coach. Those who know me know that today my heart is bleeding, and I hope that some of the players are also bleeding, so that would mean that at least we are on the right path."

Dailon Livramento and Daniel Mosquera – twice – scored in their league debuts to give Verona the win on the opening weekend of the Italian league season, and there was further bad news for Napoli as they lost key player Khvicha Kvaratskhelia to injury.

Frese played a poor back pass moments later that forced Montipo into an acrobatic clearance.

Napoli have been in a slump since Luciano Spalletti left last summer after steering the club to its first title in more than 30 years. The southern team finished 10th last season and are hoping for much better under Conte, who has previously led Juventus and Inter Milan to league titles.

Verona came out looking like a different team after the break and Grigoris Kastanos curled the ball just past the far post with the home side's first real chance of the game before taking the lead when Livramento managed to get enough on Darko Lazovic's cross to poke the ball into the bottom right corner.

Anguissa hit the crossbar in the 61st minute, but Hellas doubled their lead when they won the ball in a midfield tussle, and Ondrej Duda played it through for substitute Mosquera to fire past Alex Meret in the 75th.

Mosquera had been on the field for less than two minutes. The Colombian forward doubled his tally in stoppage time, as he was left completely unmarked by the Napoli defense.

Verona was one of only two teams to win so far in the opening round. Lazio was the other, after rallying from conceding an early goal to beat newly promoted Venezia 3-1.