Beckham will join AC Milan on loan from January until March.
“David is incredible,” his former Real Madrid teammate told the Gazzetta dello Sport. “I remember one night we arrived by train in Seville.
“At the station there were girls vaulting the gates to get a hug off him. It was like hanging around with The Beatles! I hadn’t seen anything like it, not even when Maradona was at Napoli.”
He added: “Those who say David is all style and no substance are making a big mistake.
“I will remind them that, if we won the Liga title two years ago, 80 per cent of the credit goes to Beckham.
“From the moment he returned to the side after being frozen out, he was simply extraordinary.”