West Brom have rejected a £3.5million bid from Tottenham for central defender Curtis Davies.
The 21-year-old has become a key figure for the Baggies since the club paid Luton £3million for his services on transfer deadline day last August.
Manager Bryan Robson believes the England under-21 international has a pivotal role to play as Albion bid to regain their Premiership status next season.
Robson confirmed: 'We've turned down an offer from Tottenham for Curtis. He is not for sale.
'If we can keep all of the boys together and bring in a couple of new players, I believe we will have a really good chance next season.'
Robson's stance has been backed by chairman Jeremy Peace.
He said: 'We have made it clear since the day we knew which division we will be playing in next season that it is our intention to strengthen the squad - not take it apart.'
Albion beat off the interest of several other Premiership clubs, including local rivals Birmingham, to sign Davies.
Robson's faith in the player was such that he even made him captain on occasions when first-choice skipper Kevin Campbell was absent from the starting line-up.
The West Brom boss acknowledges England Under-21 international Davies, a reported target for Arsenal in the January transfer window, has still much to learn.
But he is confident the player has the potential to become a leading force in the top flight and eventually force his way into the senior England set-up.
Defender Steve Watson claimed: ``Curtis has definitely got the ability to step up into the full England squad.
'There are a lot of very good centre-halves so it will be a tough challenge. We have half a dozen of the best centre-halves in the world but Curtis can make that step eventually.'