Bacary Sagna? Left on a free. Mathieu Debuchy? Injured. Carl Jenkinson? Out on loan. So that leaves... Hector Bellerin.
After much upheaval at the right-back spot this summer, bad luck and arguably poor decision making regarding Jenkinson has left the Gunners short ahead of a crucial game.
19-year-old Hector Bellerin is in line for his first ever competitive start of Arsenal, away at Borussia Dortmund in the Champions League.
It is a daunting task, but Bellerin appears to have the full faith of manager Arsene Wenger, and has indicated he is not fazed by the job ahead.
Shortly after Arsene Wenger finished his press conference on Monday evening, Bellerin posted the following message on Twitter:
Confidence is having all the hard work done. pic.twitter.com/ldzFb11L3c— Hector Bellerin (@HectorBellerin) September 15, 2014
The Spaniard was particularly impressive in pre-season, and has garnered a lot of attention since it was revealed he had beaten Theo Walcott's sprint record in training.
His last competitive appearances came on loan at Championship side Watford. The match at the Westfalenstadion promises to be quite a step up.