Keane was a marauding general in United's midfield... but does he beat Gerrard, Henry and Cantona to rank as the most influential player in the Premier League era?

The release of Roy Keane's updated autobiography has confirmed his status as one of the most intriguing players in Premier League history. It also recalled just how powerful a presence he was at Manchester United. Here, Sportsmail considers Keane and some of the other most influential players in the 22-year history of the Premier League.