Former Real Madrid GM Arrigo Sacchi is full of praise for president Florentino Perez.

Having spent a year at Atletico Madrid and another year as director of football at Real Madrid, Sacchi knows LaLiga well.

"I really like Florentino [Perez] because he is always changing and improving," he said at the Aspire4Sports event at Stamford Bridge in London on Friday.

"He's like [Silvio] Berlusconi; he always aims for the best. Before he loved big names, but now he is changing."

Sacchi added: "Zidane has been a huge surprise, because not only do they win but they are playing well with positive and compact football all working together."