Blackburn Rovers boss Paul Ince can't wait to battle with the man he rates as the best manager in the history of the game when he faces Sir Alex Ferguson's Manchester United on Saturday.Ince played under Ferguson at Old Trafford, before being sold to Inter, and is the latest of his alumni to join the ranks of Premier League management, joining Mark Hughes, Steve Bruce and Roy Keane as well as the likes of Steve McClaren and Brian Robson, who went on to coach in the top flight after working for