Manchester United are set to make millions if Burnley sell Michael Keane this summer.
The 24-year-old will be a wanted man, having impressed at Turf Moor this season and made his senior England debut against Germany in Dortmund in midweek.
United sold Keane to Burnley for £2.5m and it is understood a clause was inserted in the contract that says they can receive up to 25 per cent from his next transfer.