Chelsea grabbed a vital away goal as former boss Jose Mourinho and his Inter Milan side came out on top in a pulsating Champions League first-leg at the San Siro. Chelsea, whose defeat was compounded by the loss of goalkeeper Petr Cech with a knee injury in the second half, were a goal down inside three minutes when striker Diego Milito put Mourinho’s side ahead. Salomon Kalou equalised in the 51st minute but Inter restored their advantage four minutes later when Esteban Cambiasso drilled in the winner. Kalou’s goal may yet prove to be the pivotal moment of the tie when the two teams meet again in the return leg at Stamford Bridge next month.