"It would have to be an incredibly lucrative offer for me to let any of our players go because we're where we are and we want to get back in the Premier League," Boothroyd told Sky Sports News.
"So selling somebody who's been outstanding for the club doesn't appeal to me at all. I don't want him to go and that's it.
"There's been no approach from any club and I don't expect there to be any because once you say no then that's a no."