After going behind early on, the Hammers were progressively improving but were not able to take their chances; that was until the introduction of Mark Noble and Victor Obinna in the second half.
Scott Parker nodded home with minutes left to force extra time and from there the Hammers scored again through Da Costa and Obinna.
“We didn't start the game well but the reaction in the second half was great. We played well, dominated the game, and scored three goals,” Grant told the official site.
"We spoke about what we were not doing right, the mentality and the character. We changed the tactics a bit at half-time, and I was delighted at the response.”