I have never played with a stronger striker than Didier. Filippo Inzaghi at Milan was a smart guy, Andriy Shevchenko was strong, but not in the air, Hernan Crespo, Alessandro del Piero - Didier is different to them all. I think he is one of the best in the world right now. I would put him alongside Zlatan Ibrahimovic, Fernando Torres and Samuel Eto'o but I would not swap him for any of them.