Sheffield Wednesday manager Gary Megson has revealed the club recently turned down a bid from local rivals Barnsley for Mark Beevers.
Barnsley had been in the market for a replacement for Jason Shackell after the centre-half joined Derby County in a reported £1million deal.
Beevers was among the players to be under consideration by the Tykes and a bid reported to be worth £200,000 was put to Wednesday.
However, Megson is determined to keep the 21-year-old at Hillsborough and believes Beevers will eventually command the type of fee Barnsley received for Shackell.
"Mark is part of the plans here," said Megson in the Sheffield Star. "He's a good young player.
"He was starting to show something like what he can do, before he was injured.
"There was a bid from Barnsley. We turned it down. I think he has the potential to be as good as the defender they sold for £1m."
Beevers has made over 140 appearances during his Owls career, but missed the end of last season after suffering a fractured cheekbone.