United were pipped to last season's Premier League crown by local rivals Manchester City on goal difference and Sir Alex Ferguson has vowed such a scenario will not happen again.

Ferguson has improved his attacking options by bringing in Dutch hit - man Van Persie, who was the leading scorer in the top flight last term, from Arsenal.

Van Persie has already scored four goals for United, including a hat - trick in the ۳-۲ win at Southampton last weekend, and Giggs is optimistic he will deliver the goods.

" We lost it on goal difference, so hopefully the goals that he ' s bringing, if it does come down to goal difference, then we ' ll have the upper hand this time, " Giggs told Sky Sports News.

Giggs also acknowledged that splashing out on the ۲۹ - year - old Van Persie was a departure from United boss Ferguson ' s transfer policy in recent years.

The Red Devils veteran added: " The goals that he ' s scored, and his performances in general, it ' s obvious he ' s a world - class player.

" The manager ' s policy over the last ۱۰,۱۵ years is to buy young players and develop them, the likes of Cristiano, the likes of Wayne.

"But Robin's a readymade world-class star and is proven. I think he's shown that in the first few games and I'm sure there's more to come."