That angle is as good as it gets. On that clip, at no point are either of Suarez's feet even close to knee height. He's trying to dribble the ball round Evra's right hand side. He didn't kick Evra's knee. If there's another angle that shows something different, I'd like to see it. Edit: there are two of you saying he kicked him now, so maybe I should investigate further. That clip appears to show nothing approaching a kick.