Arsenal have trained for the final time before Tuesday night’s Champions League clash against Shakhtar Donetsk at the Emirates Stadium. And with Mikel Arteta ’s team taking four points from their opening two games, a win against the Ukraine champions should leave the Gunners in a good place to progress to the knockout stages - while helping to alleviate the disappointment of Saturday evening’s defeat to Bournemouth . But there were a number of notable absentees from their session this afternoon