Scunthorpe have turned down a bid from an unnamed Championship club for midfielder Michael O'Connor.
O'Connor, 23, signed for £250,000 from Crewe in the summer of 2009, is in talks with the Iron over a new deal.
A club statement read: "United can confirm that they have rejected a bid from a Championship club for midfielder Michael O'Connor.
"The Iron stressed they do not want to sell the Northern Ireland international, who joined from Crewe Alexandra in 2009.
"Discussions are continuing between the club, the player and his representatives about a new contract to extend his stay at Glanford Park."