Napoli coach Rafa Benitez was furious with the match officials, believing they made two mistakes in the 3-1 home defeat against Juventus.
After a slow first half of football in which the visitors took the lead through a brilliant Paul Pogba effort, the Partenopei increased the pressure and restored parity in the second half only for Martin Caceres, from a dubious offside position, to put the Bianconeri back in front.
Massimiliano Allegri's men went on to add a third late in the game, a defeat which the Spaniard says is very hard to take.
"I am angry and I have all the rights in the world to feel so," a frustrated-looking Benitez said after the game.
"Every time we face Juventus someone tells me that 'it can happen'. So let's just say that it can always happen because these are difficult decisions to take.
"But is it really so difficult to see that [Giorgio] Chiellini - with such a large bandage on his head - and [Martin] Caceres - with his black and white Juventus jersey - were in an offside position?
"I believe in the referee's good faith but allow me to say that one cannot analyse the game in a technical way after it is affected by a mistake which changes the complexity of the game.
"It hurts, because the team did well to restore parity and we were improving.
"That episode [Juventus' second goal] changed everything and also our disallowed goal, that was strange to see because it was [Gianluigi] Buffon who went straight at [Kalidou] Koulibaly when he came for the ball, I see no foul there.
"This game could have changed the face of the table. We always work hard to be at the same level of the best, today I'm satisfied with the attitude of the team but again, I'm angry and there are valid reasons for it."
