Leicester City have rejected a bid from Fulham for England Under-21 defender Liam Moore, Press Association Sport understands.
The Barclays Premier League strugglers are thought to have offered in the region of £2million but have been told the player is not for sale.
The Foxes see Moore as an integral part of their plans as manager Nigel Pearson attempts to end the Midlands club's decade-long absence from the top flight, and Leicester currently lead the Sky Bet Championship by four points.
After gaining first-team experience with loan spells at Bradford and Brentford Moore, a product of the Foxes' Academy, has established himself in Pearson's team and emerged as one of the best young talents outside of the top flight.
Newcastle are among a handful of other Premier League clubs to have sent scouts to watch the 20-year-old but Fulham are the only ones to have made a bid.
The Londoners have struggled in defence in the absence of Brede Hangeland, who returned to the starting line-up for Tuesday night's FA Cup replay against Norwich, and boss Rene Meulensteen recalled Dan Burn from his loan spell at Birmingham.
Moore has 18 months remaining on his current contract at the King Power Stadium.