Maybe 5 or 6
Since the 1998-99 season Riley has awarded two penalties against Manchester United and 11 in their favour
Loads especially at Old Trafford. Ferguson bribes the refs. Shut up does he Manchester United only get penalties when they are deserved, you have no proof that he bribes them. To answer your question it was 10.
Too many!! Refs and linesmen are all paid off by Fergie