Arsenal fought so hard to overcome a very formidable West Ham side to ensure their third straight win in the English Premier League.
Alexandre Lacazette came off the bench to put a fine strike at the back of the net, although referee had ruled the goal offside, there was controversy afterVAR overturned an incredibly tight offside call initially given against Mesut Ozil.
A looping ball was diverted across goal by the German to the waiting substitute for a simple finish that took a very lengthy review to confirm as the 77th minute winner.
It was a heavy blow for the Hammers to take after David’ men gave as good as they got at Emirates Stadium.
The woodwork was rattled only two minutes in as Jarrod Bowen came close to notching a second Prem strike in as many games, while Michail Antonio and Sebastien Haller somehow failed to finish a two-on-one opening moments later.
But, although under the cosh, Mikel Arteta’s side are a heartier bunch than fans have become accustomed to and Sokratis Papastathopoulos reminded West Ham who the favourites were with a header that clattered the crossbar.