West Ham are preparing a bid worth £20m for Blackburn Rovers attacking midfielder Bradley Dack, according to the Sun.

The 24-year-old has been in superb form in the Championship this season, having scored nine goals and provided three assists in just 17 league games.

However, Dack’s performances have attracted the attention of another Premier League club with Crystal Palace also lining up an approach for the playmaker.

The former Gillingham player may be tempted by a move to a top-flight club, but Blackburn are reportedly determined to keep him at Ewood Park.

Dack has a contract at Rovers that runs until 2021 but his current club could tempt him into staying for longer by offering improved terms.

Tony Mowbray’s side have performed well since being promoted from League One last season, with Dack an integral part of that success. They currently sit tenth in the Championship table, just five points off the playoff places.