Sir Alex Ferguson believes that the addition of Robin van Persie will make his strike force the best since 1999's treble-winning quartet.

The Dutchman is expected to complete a move to Manchester United ahead of Monday's Premier League opener against Everton.

Ferguson has now compared his current crop of strikers to that of Dwight Yorke, Andy Cole, Teddy Sheringham and Ole Gunnar Solskjaer, who fired the Red Devils to Premier League, FA Cup and Champions League glory.

"[Wayne Rooney and Robin van Persie] are two fantastic players and it will be great to have both of them," said Ferguson. "It gives us more strength and more combinations up front.

"In 1999, I had Dwight Yorke, Andy Cole, Teddy Sheringham and Ole Gunnar Solskjaer, the four best strikers in Europe. We are going towards that now with Javier Hernandez, Wayne Rooney, Robin, Danny Welbeck and Shinji Kagawa.

"It is a fantastic collection of players and hopefully I pick the right combinations. It is great to have a player of Robin van Persie's qualities to come into the squad. I am very pleased."

Van Persie is currently undergoing a medical with Manchester United ahead of a reported £24m deal.