Crystal Palace are willing to increase their offer for Galatasaray full-back Lionel Carole, according to reports.
The Premier League club's opening bid of £3m was turned down by the Turkish giants, who have set the 25-year-old's asking price at £6m.
And according to the Turkish media, the Eagles are prepared to increase their valuation of the Frenchman in order to force through the move.
Struggling at the wrong end of the Premier League table, Palace boss Sam Allardyce is expected to bring in reinforcements during the summer window.