Yesterday I was refereeing a youth game in the league cup. It was a great game with the full time score being 5-5. For me it was a very easy game; there weren't any decisions that I struggled on (apart from when the linesman flagged and I couldn't really see it becuase he had wrapped the flag around the pole!!!) However about 20 minutes from the end I started to lose concentration. When that happened I made a few mistakes regarding fouls. Does anyone have any tips on how to keep concentration levels high for the whole game and if they do dip, how to revive them. Thanks