Former Arsenal striker Ian Wright felt that one of Mikel Arteta’s players let the side down in a crucial moment on Sunday. There were many things that the Gunners didn’t get quite right when they took on Chelsea at Stamford Bridge. After the 1-1 draw in West London, Mikel Arteta slammed Arsenal’s defending when it came to the equaliser that they conceded. There were missed opportunities at the other end of the pitch too, and had the Gunners more clinical they would have come away from this London derby with three vital Premier League points on the board. READ MORE: Everything to know on Arsena…