Not many players get the chance to play for Manchester United but one current Blades star has claimed he very nearly signed for the Red Devils as a youngster. The Old Trafford outfit have a rich history in the game and until very recently, only the very very best were given the chance to play for them. Of course, the last few years has seen a bit of a decline in terms of quality at Man United. But overall, they remain one of the biggest clubs in the world. READ MORE: Manchester United have four big injury worries ahead of Blades clashNaturally, most players would jump at the chance of signing …