De Jong, 23, could partner 11-goal Loic Remy â€“ back from a three-match ban â€“ in todayâ€™s home game against Aston Villa.
Pardew said: â€œThe training has had a bit of an impact on Luuk. Itâ€™s faster, itâ€™s stronger and more physical in training over here, let alone in games.
â€œI look at Wilfried Bony at Swansea and he started slowly there. Thereâ€™s a big change in the way the game is played here but Luuk is getting to grips with it.
â€œHeâ€™s a terrific lad and has the type of personality you canâ€™t help but like. Heâ€™s integrated very quickly. I hope heâ€™s going to be a big asset between now and the end of the season.
â€œI spoke to him this week and we said itâ€™s not been the easiest time for him to come here. Weâ€™ve not given him the platform to show what he can do.
â€œItâ€™s important we get on the front foot and give him, Loic, Papiss and Shola Ameobi the ammunition.â€™â€™
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