David Trezeguet was at Real Madrid this week to see former France teammate Zinedine Zidane.
After the training session and a chat with Zidane, Trezeguet spoke to Real Madrid's media channels.
"Zidane has shown everyone his qualities as a coach," he said, "he has managed to transmit a lot of enthusiasm to this group.
"For other teams, that serves to keep them improving, and trying to reach the level that Real Madrid have at the moment. They're the team to beat."