David Sullivan on the bullying, threats of violence and agent demands in the transfer window

West Ham co-owner David Sullivan gives Sportsmail a fascinating insight into the January transfer window - a time when players are offered around by agents chasing huge fees. 'In this window, I have had an agent threaten me and threaten one of our West Ham players with physical violence, because he thought he was being cut out of a deal. I heard of three or four agents trying to jump in on other deals. Some of these people are like scavengers.'