Manchester United will make an improved offer for Arsenal striker Robin van Persie.

The Mirror says United boss Sir Alex Ferguson is preparing a new bid to sign Van Persie.

Ferguson has already had one bid turned down but his club are determined to beat off competition from Juventus and Manchester City.

Gunners striker van Persie, 29, was still at Arsenal's training camp in Germany this morning, training with the squad ahead of their friendly in Cologne on Sunday.

United are expected to go back in this week but Arsenal have yet to receive a new offer with the board determined to hold out for £20m-plus.