The Gunners have been drawn with Sporting Lisbon, Ukrainian side Vorskla and Azeri champions Qarabag in Group E.
There are now no diplomatic relations between Armenia and Azerbaijan, primarily because of the ongoing Nagorno-Karabakh conflict, and as a policy Azerbaijan denies issuing entry visas to Armenian nationals or even people with Armenian surnames.
UEFA argued that AC Milan did not meet a break-even requirement under its Financial Fair Play regulations, adding the club had not provided sufficient evidence of its financial stability.
Here, Press Association Sport looks at the clubs that will visit Ibrox in Group G.
Arsenal coach Unai Emery however has now responded to the situation positively suggesting his side will reach out to authorities for a visa approval for the player and hope for a positive outcome.
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Leipzig and Salzburg were paired in Group B of Europe's second-string club competition alongside Scottish champions Celtic and Norwegian side Trondheim.
Chelsea's Group L includes PAOK (pron: Pow-k), BATE Borisov and Vidi.
The German and Austrian clubs are both allowed to play in European competition after the UEFA Club Financial Control Body ruled last summer that they did not break rules on the integrity of UEFA competitions.
PAOK finished as runner-ups to AEK Athens in Greece last season, but they fell into the Europa League after losing a Champions League play-off to Benfica.
Cross-city rivals Rangers have the toughest-looking draw of the British quartet.
The first round of matches will be played on Thursday, Sep 20.