Mazzarri shrugs off Lavezzi strop during Napoli draw
Lavezzi was irritable throughout the match and furious at his substitution, hurling his shin pads at a wall.
"He probably wasn't happy with his performance," shrugged Mazzarri.
"When I see a player who isn't having a good day, I tend to try someone else. Intelligent players reflect on their performances. Lavezzi is crucial for me, but today he didn't give his best."