Sylvester Stallone is to star in an advert for bread.

A source told The Sun newspaper: "The bosses at Warburtons have signed a real top-drawer name in Stallone.

"Sly doesn't come cheap and he isn't an obvious choice to promote bread - but he is bound to get people talking.

"They're sure the investment will be worth it."

The 'Rambo' star will recreate his famous run up a flight of stairs, this time with a loaf of bread in each hand, while filming in the north of England, where the company is based.

He will also be seen getting his hands dirty at one of Warburton's factories in west Yorkshire.

Although the deal has not yet officially been signed off, Stallone is said to have already enlisted the help of a stunt double who worked with him on the 'Expendables' films.