Blackpool have accepted a bid from League One rivals Bradford City for defender Kelvin Mellor, according to reports.
It was reported the Bantams had an offer rejected over the weekend but they have since come back with an improved second offer, which has been accepted by the Seasiders.
Wigan Athletic are also thought to be keen, but the Telegraph & Argus understands Bradford have moved ahead of the League One leaders in the chase for the Crewe-born defender.
Although a bid has been accepted, reports suggest the deal is far from cut and dried.
Losing Mellor will be a huge blow for Blackpool boss Gary Bowyer, who had previously gone on record as saying the main focus this month will be keeping hold of his best players.
The 26-year-old was named in the PFA League Two team of the year last season as Blackpool won promotion through the play-offs.
He was also voted The Gazette's player of the season.
He won plenty of plaudits last season having found the back of the net on seven occasions. He has already scored five times this season.
Mellor signed for the Seasiders in the summer of 2016 following his release from Plymouth Argyle.
His contract runs out at the end of the season.