"At this moment in time he is a player I like to watch. He can make the difference in an incredible way. If I could sign any player, yes, it would be Messi."
Asked about Messi's teammate Ronaldinho, Kaka continued: "Can we play together? Of course.
"I can play with Messi, with Ronaldinho, with Alexandre Pato and with Pippo Inzaghi. It is just an issue of adapting to each other."