Last updated on 32 minutes ago.
Emile Smith Rowe came off the bench to score a goal.
An arrest has been made and an investigation is under way after an alleged incident of racism from the crowd during the home defeat by the Gunners.
The fourth official was approached by Rob Holding in the 33rd minute, who said he had heard racial abuse from a supporter.
A life time ban will be imposed on any supporter found to be using racist language at any of the club's games.
Mikel Arteta said that it was very disappointing because they have done so much to avoid that.
The situation was reported. The authorities have to deal with it. I don't have anything to say about it.
I don't think it's right for a full stadium to pay the price. It was a single incident that needs to be reported.
The incident is being investigated by the premier league.
