Manchester United boss Sir Alex Ferguson has warned Manchester City they won't recover if they blow the title tomorrow. City are 9-1 ON to beat QPR at home tomorrow and clinch their first top-flight crown for 44 years.

But Fergie declared: "City have to win and it is an enormous challenge for them, because the disappointment of losing the game would be unbelievable.

"It is untold at this moment in time what effect it could have on them.

"It won't be easy for them, because the pressure is on them and the fans will be putting the referee under tremendous pressure.

"On the face of it, you expect City to win - and so do I. But as long as human beings are human beings, you never know.

"You hope something stupid happens."