The Dutchman netted both goals in a 3-2 defeat for FC Utrecht.
The Arsenal boss wants his side to score more from all areas but retain their defensive solidity at the same time.
Here is how West Ham line up for this afternoon's friendly against Charlton Athletic.
Dougie Freedman managed the striker during a loan spell at Bolton Wanderers.
Here is how Leeds United will line up for this afternoon’s match against Hoffenheim:
Here is how Celtic will line up for today’s match against Rennes:
Here is how Aston Villa will line up for this afternoon's friendly against Walsall.
Manchester City, Newcastle United, Tottenham Hotspur, West Brom and West Ham are all interested in the player.
Leeds United have reportedly kept tabs on the Catania winger for some time.
The defender says the competition is the perfect opportunity for youngsters to prove their worth.