The referee is the own that should be blamed because he has the final decision since he is the one in charge of the match and no one can do anything but to obey his decisions. The referee made Arsenal to loss all three points yesterday and this has affected their points. Newcastle were given an advantage on that decision maybe because they are playing at home, but it is was not called for. Arsenal was suppose to have scored since and this would have not happened. The referee should be questioned by FIFA.
There are several Premier League matches this season that are similar to the Newcastle vs Arsena match.
I remember a few weeks ago when Liverpool were injured by the referee's decision when facing Tottenham, no one could do anything, that's how football is, referees and other match officials are also human beings who don't make mistakes.
Of course, the Arsenal players were very disappointed because they were the ones who suffered losses, but apart from that, they also couldn't afford to dwell on their first defeat.
Arteta must be able to motivate Arsenal players to get up in the next match so that they can return to a positive trend.
Newcastle is slowly starting to crawl to the top of the standings, Newcastle's current performance is better and this team has made quite an improvement, I think Newcastle is not stopping here and they should be wary of this season in the fight for the title.