Santi Cazorla 41th and Danny Welbeck 44th stood out for the visitors of the North of the capital, while Laurent Koscielny made his return as holder, together with Mathieu Debuchy, Mathieu Flamini and Francis Coquelin, Olivier Giroud purging the first one of his three matches of suspension.
Hammers de Morgan Amalfitano was not able to tear away a point in second period in spite of the reduction of the gap from Cheikhou Kouyaté 54th.