Fulham have made a bid for Burnley midfielder Sander Berge worth £20m plus £5m in add-ons.
The Norway international would be Fulham's fourth signing of the transfer window following the arrivals of Emile Smith Rowe, Jorge Cuenca and Ryan Sessegnon.
Fulham are looking to increase their midfield options after Joao Palhinha signed for Bayern Munich in July.
The Cottagers have also tried to bring in Crystal Palace defender Joachim Andersen with their last bid - £25m plus £5m in add-ons - falling short of Palace's valuation.
Berge, reportedly a target for Manchester United, has not featured in Burnley's first two games of the Championship season, with boss Scott Parker citing an injury as the reason.