Arsenal Injury News: Update On Walcott, Koscielny, Diaby, Ospina And Gnabry Ahead Of Premier League Opener With Crystal Palace

Arsenal have been handed a boost ahead of their Premier League season opener against Crystal Palace on Saturday, with Laurent Koscielny set to return from injury. The France international was forced off at half time in Arsenal's 3-0 Community Shield win over Manchester City on Sunday after suffering an Achilles problem, but is now back in training.