Arsenal have announced their squad for the Europa League.
There are plenty of familiar faces in the squad, although no room for Mesut Ozil.
The attacking midfielder is not the only notable absentee from the list of names, however, with Bukayo Saka also missing.
Despite winning his first England call-up, Saka has not been named on the Gunners' Europa League squad list.
Yet clubs have only submitted a List A squad for the Europa League.
UEFA rules state that clubs must submit two lists of players for their Europa League registration.
The first one, List A, is the squad list that was submitted this week and contains a number of rules.
These include having a minimum of eight places for locally trained players - although the maximum number of players in their squad is reduced should these numbers not be met.
Locally trained means players that have been trained by their club or another club in the same nation for at least three years between the age of 15 and 21.
Four of these players must have been trained at the club they are being registered for.
Younger players, however, do not need to be registered on List A.
Instead, there is a List B for players born in 1999 or after who have been eligible to play for their club for at least two years since their 15th birthday.
That means Saka, who was born in 2000, will feature on that list instead.
There are no limits to the amount of players that can be registered on a List B, provided they meet the eligibility criteria.
That means the likes of Eddie Nketiah, Reiss Nelson, Joe Willock and Emile Smith-Rowe can also be named on List B.
