Arsenal are four points behind leaders Chelsea after a penalty from Jonathan Walters gave Stoke a 1-0 win at the Britannia Stadium.
Laurent Koscielny handled inside the box fifteen minutes from time and referee Mike Jones immediately pointed to the spot.
Arsenal were dreadful, with Yaya Sonogo missing a great chance to equalise in injury time, while Glenn Whelan was lucky not to be sent off for a clear stamp on Olivier Giroud before Walters’ winner.