Declan Rice’s maiden Premier League goal secured West Ham United a 1-0 win over Arsenal at the London Stadium at lunchtime.
The homegrown midfielder struck three minutes into the second half to earn the Hammers their first home win over their capital rivals in 13 years.
A sixth victory from nine takes Manuel Pellegrini’s side to eighth in the table, and it is now only one win in four top-flight matches for the Gunners.
Michail Antonio showed West Ham’s attacking ambition early on with a 60-yard run down the right wing, with his pass inside eventually leading to a chance for Mark Noble who scuffed his 20-yard effort straight at Bernd Leno.
Otherwise it was Arsenal who started the stronger, with Alexandre Lacazette forcing a 13th-minute save out of Lukasz Fabianski with a low shot, after his driving run from Alex Iwobi’s pass had taken him beyond the penalty spot.
The Frenchman had another sight of goal moments later but could not keep his header down from a cross from Pierre-Emerick Aubameyang, who would have had a shooting opportunity himself with a better pass from Matteo Guendouzi.
West Ham grew into the game after the opening 20 minutes, with new signing Samir Nasri instrumental in much of their attacking play. The playmaker had a chance to score against his former club when he dragged wide following a one-two with Marko Arnautovic.
Nasri’s layoff teed up Felipe Anderson for a piledriver which had Leno beaten but flew just wide, and Guendouzi came equally close for Arsenal at the other end on 35 minutes, rustling the side-netting with a shot from 25 yards out.
Arsenal did enjoy a 10-minute period when they were knocking on the door for an equaliser, as Alex Iwobi fired a left-footed shot just past the post and Guendouzi had another go from distance, albeit straight into the safe hands of Fabianski.
Nasri enjoyed an impressive debut, linking up well with West Ham’s forward line, but he may not be teammates with Arnautovic for long, with the Austrian appearing to wave goodbye to the home fans as he was substituted in the second half, amidst talk of a move to China.
The Gunners did have the ball in the net twice in the second half, but both efforts were disallowed for clear offsides against Sead Kolasinac, and they largely went down with a whimper as they failed to score for the first time in 20 league games.