Gill insists the England international is not for sale at any price.
“I’m very, very confident in saying that unless Alex agreed to it, we would not accept an offer for a player that we wanted to keep – regardless of the value,” Gill told Radio Five Live.
“From my own personal perspective, and Alex’s, we have no doubt in saying that they (United’s owners, the Glazer family) would support whatever we require from a team perspective.”
He added: “Wayne has a contract through until 2012,” said Gill.
“He has gone on record to say he wants to stay and we want him to stay.
“I’m sure (a new deal) will be addressed in the close season. We hope that would be the case as we want to put him on a new, long-term contract. He’s 24 and got the best years of his life ahead of him.
“Very few players, particularly UK-based players, want to leave Manchester United.”