Arsenal have made an improved offer of £25m for Celtic defender Kieran Tierney, according to a report.
The Gunners are believed to have previously had a £15m bid rejected for the Scotland international, who has spent his entire career with the Glasgow giants.
Celtic told Arsenal that they would not sell the left-back for anything less than £25m, and The Sun claims that the North London outfit have matched the Bhoys' valuation.
That would make it the record transfer in Scottish football, surpassing the £19.7m Lyon paid to sign Moussa Dembele from Celtic last summer, with insiders saying that it is now inevitable a move will go through this window.
"Kieran loves Celtic but his heart is set on a move to the Premier League," a source is quoted as saying by the publication.
"We all know he wants to further his career and offers like this do not come along often, so it looks inevitable."