Manchester United are preparing an improved bid for Athletic Bilbao midfielder Ander Herrera.
The Daily Mail says United were preparing an improved offer for Herrera on Friday night after a £21million bid was rejected.
Bilbao want United to meet Herrera's £25.5m buyout clause, and president Jose Urrutia said: "For a player to leave he needs to state his intentions to leave and (the club) pay the buyout clause."
It is believed Herrera has expressed a desire to go.
