JBM needs to be at tactical best if Rebels are to prevail

The areas which will decide tomorrow’s All-Ireland semi-final

Dublin’s system

Paul Ryan and Dotsie O’Callaghan have operated as an effective two-man full-forward line for Dublin in their wins over Kilkenny andGalway. Twenty years ago theresponsibility for marking these two would have fallen solely on their respective markers’ shoulders.However in this age of tactical play Cork’s Conor O’Sullivan and Shane O’Neill’s success on the Dublindanger men will depend on how the Rebels set up around midfield.