• Blues' manager to watch German Cup final on Saturday• Italian to field a weakened side against Blackburn RoversRoberto Di Matteo is to scout Bayern Munich in person by attending their German Cup final against Borussia Dortmund on Saturday evening at Berlin's Olympic Stadium as his preparations for the Champions League final next week gather pace.Chelsea's interim first-team coach will select a weakened team for Sunday's visit of Blackburn Rovers – a match that has been rendered meaningless with Chelsea sure to finish sixth and Steve Kean's side relegated – and his focus is now on the showpiece to come at the Allianz Arena.Neither Gary Cahil...