Were you watching the same Yaya Sanogo I was? He looks unbelievably clumsy with the ball, I believe the term is 'lumbering oaf'. Terrible decision making and can't dribble at all. But, he's big and black and reasonably quick (not a terrible shot on him either), so I can understand if he can eventually become good... world class? Absolutely no chance.
Very reminiscent of Welbeck, but Welbeck can actually dribble but not finish... whereas Sanogo has shown a decent shot, but looks more likely to fall over than move forward