Watford striker Mauro Zarate has had a pop at Fiorentina coach Paulo Sousa.

Zarate says he's happier playing for Hornets boss Walter Mazzarri.

"I am very happy to have come to Watford, the Premier League is the best league in the world," he stated.

"It is not true that I am now a player more mature, the difference is that now I have the confidence of the club and the coach. I had the chance to move here and I'm glad we did.

"The Premier League is the best league in the world."