Such is United’s interest, they have reportedly made a tentative enquiry about the former Arsenal man but Sunderland are thought to be unwilling to consider a sale.
However, United are still considering a formal offer to test their resolve - in what would be a hugely surprising move.
The 25-year-old ended his eight-year stay at Arsenal when he signed a two-year contract with the Wearside club over the summer.
He managed only 26 senior appearances for the Gunners - four of which came in last season's Champions League - but has become an integral member of Gus Poyet's side as they look to pull away from the relegation zone.
- Sports & Recreation
- David Moyes