Bournemouth have reportedly lodged a fourth offer for Birmingham City attacker Demarai Gray.
The Cherries are said to have had three previous bids, the last of which was worth £3m, rejected by the Blues.
However, the Championship leaders have now upped their interest by a further £500,000, according to Sky Sports News.
The report adds, though, that Birmingham are not currently prepared to budge on their £5m valuation of the England youth international.
Gray's contract at St Andrew's is due to expire in the summer of 2016.
