RB Leipzig cruised 4-0 past second-division Hanover on Wednesday in the German Cup quarter-finals to underline they are the top favourites to win major silverware at last. Christopher Nkunku scored a first-half brace, and Konrad Laimer and Andre Silva added the other goals for the two-time runners-up. Union Berlin beat St Pauli Hamburg 2-1 on Tuesday and the other games Bochum v Freiburg and SV Hamburg v Karlsruhe were also on Wednesday. The semi-finals are drawn on Sunday and played April 19 and 20 for a place in the May 21 final in Berlin’s Olympic Stadium. Founded only 13 years ago and back…