Manchester United are still working on a compensation package that would convince Besiktas to terminate Wout Weghorst's loan and allow the striker to move to Old Trafford.
United have made an offer to Burnley, which has been passed on to the Turkish giants, but Besiktas have rejected that proposal and said they want to keep the 30-year-old until the end of the season.
Weghorst has scored nine goals in 18 games for Besiktas and they have a €10million option to sign him permanently at the end of the season.