Arsenal defender Laurent Koscielny is a major doubt for the Gunners’ game against Newcastle this weekend. The 29-year-old was absent for the draw against Liverpool on Monday with a back complaint. Calum Chambers will continue to deputise in his place should he miss out. Arsene Wenger called Andriy Yarmolenko to see if the Dynamo Kiev forward would be interested in a move to Arsenal - but the 25-year-old replied that he wanted to join Barcelona. That claim is made by Catalan newspaper Sport, who add that Barcelona aren’t keen on a deal as it stands. And finally reports in Germany claim Borussia Dortmund midfielder Jakub Blaszczykowski is a target for Arsenal.