Manchester United boss Sir Alex Ferguson admits he wants a "top striker" signing.

"We are working on bringing in another top striker," Ferguson told United Review. "Having added strength up front is a situation I really enjoy."

He added: "Ideally I like to operate with four experienced strikers, as we did when we won the treble, when we had Andy Cole, Dwight Yorke, Teddy Sheringham and Ole Gunnar Solskjaer.

"It was an admirable strength to have when it came to the end of the season and we were competing on three fronts with key games coming at us thick and fast."