Bournemouth striker Joshua King is wanted by four of the top six clubs in the Premier League this summer.
Manchester United made a £20m bid for King on Deadline Day in January but they did not improve their offer after it was rejected.
They signed Odion Ighalo on loan from Shanghai Shenhua instead.
King has one year left on his Bournemouth contract and is likely to leave this summer.
He has scored 48 times since moving to Bournemouth five years ago after his contract ran out at Blackburn Rovers.
United will sign a striker this summer, especially if Ighalo returns to China after his loan expires.
Chelsea head coach Frank Lampard also wants to add to his attacking options when the transfer window opens.