Arsenal Injury Update ahead of Premier League Opener

Arsenal will face West Ham United in their opening Premier League game and must start the campaign with three points.
Having finally beaten Chelsea in the Community Shield, Wenger must feel confident that his side can finally win the title but he still needs to add at least a quality striker.
As far as the injury news is concerned, the North Londoners have majority of their key players fit and available for the Premier League opener against the Hammers.
However, they do have three main injury concerns. Last summer’s signing Danny Welbeck played his last game for the Gunners back in April and will miss the start of the season with sustained knee injury.
Moreover, as per the provided PhysioRoom link, Czech playmaker Tomas Rosikcy is also going to miss the game against West Ham with Knee injury and should return around game week 5.
Last but not the least, Jack Wilshere recently suffered an ankle injury. Although Wenger expects him to be fit for the game but if sanity prevailed, the England international should not take part against West Ham given his poor injury record.