Napoli coach Walter Mazzarri hailed Juan Zuniga after his goal against Inter Milan.
The 1-1 draw clinched Champions League qualification for Napoli.
Mazzarri said: "I joked with Zuniga for a year that he'd never score for us, but tonight he got his second of the season.
"He came from Siena as a left-back, but can now play on either flank in defence or midfield, while he can even go in attack."