Haven't seen too much of him but if that's the kid I'm thinking of, the trick to taking him out of the game is to put him on his left foot. He always seems to try using the outside of his right foot to control passes coming from his right when he's under no pressure and when it would be more natural, easier, and faster for building the attack to use his left.
He'll do well and look good against L1 defences because of his pace, but against better defences they'll exploit that weakness in his game and he'll disappear. It's like Stead when he moved to the PL, a brief run of success and then a had to drop down again because he'd been found out. I'm still amazed Blackburn made a profit on him, if Keane hadn't been so happy to splash other people's cash about I'd have been spot on with my prediction at the time of the deal.