#3 Full-backs
Héctor Bellerín
The arrival of Stephan Lichtsteiner has undoubtedly put Bellerin's place at Arsenal in jeopardy, but Emery is highly unlikely to bless the new signing who has already entered the twilight of his career with a starting spot ahead of the talented 23 year old.
However, if Bellerin fails to make the grade, the former Juventus veteran will be waiting in the wings to limit his opportunities.
Nacho Monreal
Nacho Monreal is one of the unsung heroes at Arsenal as much of his contributions go unacknowledged.
Despite a chaotic and unreliable rearguard, Monreal has established himself as a sturdy and versatile defender who can be slotted anywhere into the back-line and still execute his duties to perfection.
Apart from his defensive contributions, the 32 year old has also showed his mettle up front by netting some much needed goals and whipping in assists when required.