Watford wonderkid Tommie Hoban has the Premier League's biggest clubs chasing his signature.
Zola said: "Tommie Hoban was the best player on the pitch, no question in my mind.
"His confidence, his touch - he has a calm in possession which is a great quality for a defender.
"You don't need to tell Tommie something twice either. That's why he's improving so much game by game."