Chelsea whizkid Lucas Piazon is unhappy over comparisons with Real Madrid star Kaka.

Like Kaka, Piazon came through the system at Sao Paulo

He told Sambafoot: "I don't think [we are similar]," the 17-year-old says of the Real Madrid star. "My style and his style are different because I am a winger, or a second-striker, and he is a central midfielder.

"I don't think the comparison is because of our style. I think it is because we both played at São Paulo and maybe we can look similar on the pitch sometimes."