Emmanuel Adebayor came off the bench to inspire Arsenal to victory over West Ham at Upton Park.
The Togo international created the breakthrough after 75 minutes when his cross-shot was turned into his own net by West Ham full-back Julien Faubert.
As the Hammers pushed for an injury time equaliser, Adebayor finished off an incisive counter-attack by rounding Robert Green to rifle home the second. West Ham finished the game with 10 men after Carlton Cole was sent off in injury time for a foul on Alexander Song.