Theo Walcott's abdominal wall injury will require minor surgery and will sideline him for up to four weeks. According to a report in the Mirror, he will undergo the procedure in Germany, and then face a recovery that could last a month. In announcing this information, Wenger noted that "Theo will be out for a few weeks. He has developed some damage to his posterior abdominal wall. It’s not a hernia, but it’s a little structural problem in his abdomen."
Earlier this week the prognosis was suggesting a two week absence, but the more complicated nature of this injury in comparison to a muscular strain means that Walcott, already in fitness doubt, will not take the field for England's upcoming World Cup Qualifiers versus Montenegro (October 11) and Poland (October 15). These matches are crucial to England’s qualification path. Additionally, Walcott will also be unavailable for the Champions League match versus Napoli. The most optimistic prediction is for Walcott to make his return versus Norwich on October 19, but until the procedure takes place much remains in flux.