Former Arsenal manager George Graham believes that the Gunners will have to sell Robin van Persie to Manchester United if the Dutchman desires a move to Old Trafford.

The Red Devils have been linked with a move for the unsettled striker, who recently revealed that he is not planning to sign a fresh contract at the Emirates.

"I think he will definitely be going," Graham told talkSPORT."They won't want to see him through the contract and then be a free agent next summer. They will pick the best fee for him.

"It will be a great signing for Sir Alex [Ferguson]. I wouldn't think Arsenal want to sell him to Manchester United. But they are not in the driving seat. If van Persie really wants to go there, then from a business sense they would have to sell him."

Manchester City, Juventus and AC Milan are thought to be interested in signing the prolific frontman.