Arsenal Unveil New Signing Calum Chambers [Getty Images]

ST ALBANS, ENGLAND - JULY 28: (EXCLUSIVE COVERAGE) (PREMIUM PRICING APPLIES) (MINIMUM PRINT/BROADCAST FEE OF GBP 150, ONLINE FEE OF GBP 75 PER IMAGE, OR LOCAL EQUIVALENT) Arsenal new signing Calum Chambers is pictured with Theo Walcott on July 28, 2014 in St Albans, England. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

Arsenal FC Stuart MacFarlane