Milan: Atletico Madrid striker Diego Costa headed home late on to seal a 1-0 win over AC Milan on Wednesday and give a huge boost to the Spaniards' hopes of qualifying for the quarter-finals of the Champions League.


Atletico Madrid's Brazilian forward Diego da Silva Costa (L) celebrates after scoring a goal with his teammate Brazilian defender Joa Miranda de Souza during the Champions league match AC Milan vs Atletico Madrid at the San Siro Stadium in Milan. Pic/AFP 

Milan had kept Diego Simeone's side on a tight leash throughout a thrilling encounter at the San Siro, but after missing three golden chances to take a first-half lead, the hosts were stunned in the 83rd minute when Costa rose to head inside Christian Abbiati's near post following a corner.