Manchester United have secured two signings for the senior team but it is a measure of how highly rated Chido Obi-Martin is that the noise around his signing is almost as much, if not more, than the previous two. Set to join from Arsenal in a move that has many United fans making the same point, Obi-Martin’s goal record at youth level is the stuff of legends. He was a highly coveted player when there was an inkling that he could be snapped up and United pulled out all stops to do so, eager to get their hands on one of English youth football’s greatest talents right now. As per some reports, th…