United won both the Premier League and Champions League last term but Ferguson now wants his squad to knuckle down to the new campaign.

He insists he will not be afraid to move players on if he feels they are not showing the hunger he expects.

The Scot said: "If success has gone to anyone's head and they show signs they are ready to rest on their laurels, they will soon be on their way.

"Soon I will look into the eyes of my players to make sure they have retained the hunger they need to succeed. Then we will look forward.

"If I don't see the appetite and ambition, then the bus moves on without anyone who has lost the spark."