Sky can get things wrong on occasion. Daniel Taylor of The Guardian - a more reliable source for pretty much everything to do with Manchester United - notes he becomes the eighth striker, rather than us already having eight before Bébé.
Manchester United sign £7.4m Portuguese striker Bebe | Football | The Guardian
One could possibly argue the case of Joshua King being a striker on our books, too, who is currently on loan at (and scoring for) Preston North End. He's played off the bench for the senior team on a Carling Cup game, after all.But I think Sky have just got it wrong, as King isn't really a senior team player just yet, more of an academy/reserves player for now.