The Sky TV pundit said: â€śFor me, those two arenâ€™t in the same league as Van Persie. I was disappointed in both of them.â€ť
But Gunners boss Wenger insists the summer signings will come good.
The Frenchman rapped: â€śI have worked for 30 years on the football pitch, every day. I know what it is to improve a football player.
â€śWhat it is to go out morning and afternoon and try to make a player out of somebody. Not everybody can say that.
â€śOf course they are quality players.
â€śI do not listen too much to what people say â€” I try to see if it is exaggerated or not.â€ť