'Could be a trump card' - Martin Keown backs Mikel Arteta to get best from Raheem Sterling at Arsenal

Martin Keown is optimistic that Raheem Sterling can find his best form once more at Arsenal after joining the north London club on a season-long loan deal on deadline day. Keown believes Sterling could be a "trump card" for the Gunners this season and believes Arteta can work some magic with the player, after having success with him at Manchester City.