United pulled off the transfer coup of last summer when they bought Van Persie from the Gunners for 24 million pounds, and now, Ferguson is understood to be keen on winger Walcott, who could end up leaving the Londoners because of his contract stand-off, the Daily Mirror reports.
Walcott is set to be out of contract at the end of the season and has hit deadlock after Arsenal made him a take it or leave it 75,000 pound-a-week offer to stay.
Manchester City, Chelsea and Liverpool are all keen, but United are the latest club to show interest.
Arsenal boss Arsene Wenger insists Walcott will not be sold in January, but Liverpool and now United are considering bids while the other two Prem giants may wait until the summer, the paper said.
Walcott will be free at the end of the season so it may give Arsenal a dilemma next month especially if United steam in. (ANI )