Manchester City skipper Vincent Kompany is full of praise for their new-look strike-force.
Alvaro Negredo and Stevan Jovetic have both impressed the Belgian.
"Alvaro has given us defenders an interesting time during training with his movement and finishing. His attitude as well is spot on.
"We're having a lot of fun already. Jovetic you can see has great feet. I can't say enough about Navas and all those that have joined us."