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SHEFFIELD, ENGLAND - OCTOBER 27: Injured Arsenal midfielder Alex Oxlade-Chamberlain leaves the pitch with physio Colin Lewin during the Capital One Cup Fourth Round match between Sheffield Wednesday and Arsenal at Hillsborough Stadium on October 27, 2015 in Sheffield, England. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

SHEFFIELD, ENGLAND - OCTOBER 27:  Injured Arsenal midfielder Alex Oxlade-Chamberlain leaves the pitch with physio Colin Lewin during the Capital One Cup Fourth Round match between Sheffield Wednesday and Arsenal at Hillsborough Stadium on October 27, 2015 in Sheffield, England.  (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)