Tottenham take on Arsenal this weekend and it’s mixed news for Ange Postecoglou when it comes to the fitness of key players. The Spurs boss has been sweating on the fitness of a few of his key players going into what is the biggest game of the season so far. Of course, over at Arsenal, Martin Odegaard is an injury concern after picking up a sprained ankle while away with Norway. READ MORE: Jamie O’Hara picks his combined Tottenham and Arsenal XI and includes just one Gunners defenderHowever, Postecoglou will worry little about Arsenal’s problems and instead, focus fully on his own house. And w…