The 51-year-old was quick to praise the visitors for their peformance at Stadio San Paolo, but believes his charges should have put the result out of sight early on
A terrible back-pass from Salvatore Aronica gifted substitute Gianluca Sansone with the easiest of finishes in second-half stoppage time after Edinson Cavani had given the Partenopei an early lead.
Mazzarri has criticised his men for failing to see out the game in the dying stages, and conceded they must improve their form if they are to compete with the very best sides in Serie A.
“Compliments to Torino for causing us problems,” he told Sky Sport Italia after the match.
“We are paying the price for such a packed fixture list, as we must improve and grow. We had the chances to close the result. The game was finished, so it’s a shame we conceded.
“It was a difficult match, Torino played well and we were naive to concede that equaliser so late. We have to improve before we can compete with the top teams.”
Cavani made an instant impact upon his return from a two-game absence through injury, turning home Marek Hamsik's pass during the opening stages, but Mazzarri believes the striker's somewhat laboured display mirrored that of his side as a whole.
“He did well, but he is not as sharp as usual," he continued. "The same was true of Marek Hamsik. We had a few counter-attacks and there was a lot of space to run into, but we made bad choices in the final third.
“Hamsik missed the chance to make it 2-0 and right now everything seems to be going wrong. Aronica’s error? It’s like a goalkeeping mistake, you have to stay calm, but this is football.
“The lads know that they must keep pressing and attacking until they are at least 3-0 up. We thought that we had won, and we practically had, but were penalised by incidents.”