Quotes in the article below suggests the referee upset Nigel Pearson because he interupted his half time team talk. Surely as a professional referee you will know to address any queries immiedately after the half time whistle and not wait until a team is settled for the half time briefing? He had a shocker by all accounts and sending off Pearson has not helped matters. FA charge will be fought by Leicester though says the manager, and rightly so. http://telewatcher.com/telewatching/referee-was-rude-claims-leicester-city-manager-nigel-pearson/