Napoli coach Walter Mazzarri rued his side's missed chances after Thursday's 2-1 defeat by Siena in the first leg of their Coppa Italia semi-final.
Napoli have long been considered the masters of the counterattack, but they found themselves two goals adrift with just over a quarter of the game remaining after terrific breakaway efforts from Reginaldo and Gaetano D'Agostino at the Stadio Comunale Artemio Franchi.
Napoli halved their deficit with just four minutes to go courtesy of an own goal from Emanuele Pesoli to keep their hopes of reaching the final alive, but Mazzarri felt they could have put the tie beyond their hosts if they had been more ruthless in front of goal.
"Congratulations to Siena but we had so many chances," Mazzarri told Rai. "This year we are wasting so many opportunities."
"It was a game in which we shouldn't have conceded any goals but with the only two mistakes we made, as has happened so often this year, we conceded."
"We gave ourselves an uphill challenge but my Napoli gave it a great go."
"We tried right until the end and I think that Napoli would not only have deserved a draw but also a victory."
Napoli will now have to turn things around when they host Siena in the second leg at the Stadio San Paolo on March 21.