Arsenal claimed their first home win under Unai Emery in this season's Premier League as Issa Diop's own goal and a stoppage-time strike by substitute Danny Welbeck secured a 3-1 Premier League victory over West Ham at Emirates Stadium.
The Gunners found themselves behind as Marko Arnautovic opened the scoring for the visitors on the 25th minute. It took Emery's men just five minutes to level the score through Nacho Monreal.
West Ham were unable to build on Marko Arnautovic's opening goal
In the second half, Arsenal turned things around thanks to Diop's own goal which was conceded from an Alexandre Lacazette cross, while Danny Welbeck wrapped up the three points with a composed goal in the stoppage time.
After dominating the match for a while, Arsenal thought had taken the lead but Ramsey was ruled to be in an offside position. Ramsey picked out Bellerin on the right flank with Balbuena's tackle not seeing the ball away, with the Spaniard cutting the ball back for Mkhitaryan at the top of the area. The ball was saved, but Ramsey nodded home from the rebound but he was off.
Just before halftime, two Snodgrass and Xhaka went down after colliding as they both aimed at the ball and they had to be treated by the medical team.
Nacho Monreal's equaliser set the winning tone for Arsenal
In the second half, both teams were chasing for a goal which could give them a lead and it was Arsenal who got it in the 70th minute. It was terribly bad luck for West Ham but that’s what Arsenal needed.
The Hammers failed to clear an Arsenal attack with Ramsey heading the ball back into the area. The ball found Lacazette on the left who kept Sanchez at his back to turn the ball into the centre aiming and Aubameyang but Diop was ahead putting the ball into his own net.
Welbeck who came on for Aubameyang, rounded off the victory for the home side. Bellerin got away down the right flank before popping the ball through the legs of Masuaku and the ball met Welbeck. The England international, who was completely unmarked slotted home past Fabianski.