ARSENAL ejected SEVEN Bayern Munich fans from the Emirates home end on Tuesday evening.
And the club are now tracking down which season ticket holders gave up their seats, to suspend them indefinitely.
Bayern were not allowed any away support for their Champions League quarter-final first-leg due to a one-match Uefa ban.
That came after fireworks were thrown onto the pitch during their trip to Lazio in February.
The Gunners issued a statement on Monday threatening to ban those who were found to have sold home-end tickets to Munich fans, some of which clashed with stewards and Arsenal supporters.
After the draw, Arsenal did not sell tickets to any new members who registered for the ticket ballot after March 11, before the event.
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This was ignited due to fears of a repeat of the violent scenes that occurred in 2017 between Arsenal and Cologne fans.
Back then thousands of Cologne supporters bought tickets for a Europa League game at the Emirates from club members and ticketing websites.
That night violent pre-match clashes delayed kick-off by an hour after 20,000 Cologne fans travelled to North London for the game when only 3,000 tickets were allocated.
But on Tuesday night it is understood a protest of 100-150 Bayern supporters outside the stadium was managed on the night.
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And none of those fans entered the ground to see the 2-2 draw.
The Gunners - in the last-8 of the iconic competition for the first time since 2009-10 - had led early through Bukayo Saka, who curled in a brilliant strike.
But the home side suffered a mini-collapse with Bayern star Serge Gnabry striking back before Harry Kane then scored at the Emirates, again, with a penalty.
Arsenal looked dead and buried for a period but Leandro Trossard scored from the bench to put the second leg on a knife edge.