I don't think so. He was hurt really early in the season last year, and has had plenty of time to recover. Also, his burst has looked really good.
It takes 2 full years for the full mobility to return in the knee. his straight line speed will be fine, but his accelleration, burst, and lateral movement will be hindered this year.He will look good on draw plays, and will look bad on stretch plays and such. I expect his ability to make cuts wont be as good either.Because he got hurt early last year, he wont be terrible, but you will notice he's just not quite the same player he was last year.If he stays healthy you will notice he will be better in the second half of the season.