The San Paolo outfit were eliminated from the Champions League by the west London team in midweek, but the coach is now concentrating on domestic affairs
The Partenopei team were beaten 4-1 after extra-time by Chelsea on Wednesday night to exit Europe, but the 50-year-old is now focused on finishing on the top four of Serie A.
"Unfortunately we went out of the tournament that we honoured as best we could," he told reporters in a pre-match press conference.
"Now there are 11 Serie A matches remaining and we will try to give our all, as well as overturning the Coppa Italia semi-final result against Siena.
"It went badly at Stamford Bridge, but I give my Napoli full marks for effort this season. We have achieved something extraordinary, as playing against superpowers like Chelsea and Bayern Munich is something to be proud of.
"Plus we eliminated Villarreal, who last season knocked us out of the Europa League.
"We thought that we could make it, but ended up like a car that went off road at the last bend. I told my players they must turn their anger into useful grit for the whole team, so we can prepare better for the next match.
"There is great bitterness, but unfortunately that’s the way it went. We must overcome this disappointment in Udine and face the challenge like a real team," he concluded.
Napoli are currently fourth in Serie A, whilst Udinese are two points adrift in fifth.