The Brazilian is surprising the doubters with his early form.
Amelia said: "Kaka is in good shape. He's relaxed, smiling and gets along with everyone in the locker room. He was so determined to get over his injury that he'd be the first into the training camp and the last one home.
"He already showed some important moves against Barcelona, so we just need to wait for him to regain match fitness in order to see the champion he really is."
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