Former Manchester United star Lee Sharpe has hailed the strike-combo of Wayne Rooney and Robin van Persie.

Sharpe, 41, says RVP's movement allows Rooney the space to pull the strings for the Dutchman, who has hit 12 top-flight goals for the league leaders already this season.

He told the Daily Star: "Van Persie has been an unbelievable buy for United and you can see Rooney is enjoying playing alongside him so much.

"Their partnership is growing and the ­understanding is getting better with each game.

"And that is why I see United winning the title, because they are only going to get better. Yes, City and maybe Chelsea will have a say - but these two players are irrepressible.

"Van Persie being up top has taken the burden off Rooney and given him more time and space."