Urawa Red Diamonds coach Ricardo Rodriguez has already steered the Saitama-based club to back-to-back trophy success, but when the new J1 League campaign begins this weekend the Spaniard will be looking to end a painful 16-season title drought. Rodriguez’s side won the Emperor’s Cup in December before defeating reigning champions Kawasaki Frontale 2-0 in the season-opening J-League Super Cup on …