Dad Don has revealed what happened after the first leg of the recent Champions League tie against AC Milan.
He told the Daily Mail: "Normally, he takes his time but this night, he just zoomed off. When I asked him why, he said he had to get Kaka's shirt before anyone else did."
He did, too. And got it signed. A fortnight later, after shooting past the Brazilian in the San Siro, he phoned with the declaration: "Did you see it, dad? I did Kaka!"