The Wales defender spent the majority of this season on loan at Oakwell but returned to Pride Park and started the relegated Rams' last Premier League game of the campaign.

Despite a deal being in place for Nyatanga to sign for the Reds at the end of the season, Davey admits the transfer could yet fall through.

"To be honest I am not too sure about Lewin at the moment. He has gone back to Derby and they have come down now so we might have to wait and see on that." he told the club's official website.

"The deal is still there with Derby but there are ways to get out of it from both sides and at the end of the day it will come down to what the player wants."

Meanwhile, Davey confirmed goalkeeper Luke Steele will be joining the club permanently on June 21 after his impressive loan spell this season.