Alvaro Negredo feels the tactics of Manchester City boss Manuel Pellegrini blew their Champions League chance against Barcelona.

Negredo is this season playing on-loan at Valencia.

He admits he was surprised to see Pellegrini line up with a 4-4-2 system at home to Barcelona in the Champions League defeat.

"For me, you cannot play against Barcelona with two in central midfield and two up front. It is too risky," he told the Mail on Sunday.

"I can't describe how tired you become playing against this team; you are chasing the ball for 90 minutes. You need as many people in midfield as you can, not only to win the ball but also to keep it. But it's the manager's decision."