- UEFA will take action against Arsenal and Cologne after their match was delayed for close to one hour at the Emirates
- The German club' fans tried to invade the stadium in numbers with police reinforcements called in
- Cologne were only given 3,000 tickets but up to 20,000 fans turned up for the Europa League tie
- The Gunners secured a come from behind 3 - 1 win over the Bundesliga's buttom club
Arsenal face UEFA charges after their clash against Cologne was delayed after some of the 20,000 German fans broke through security to invade the Emirates.
Cologne supporters tried to enter the stadium and sit in the section for home supporters wearing Arsenal jersey.
Authorities were called in and they responded by locking down the sold-out 60,000-seater arena for over an hour before the match kicked off with riot police with dogs between the German fans and the pitch.
Reinforcements later arrived to bolster the initial 110 police deployed at the match.
The away club were only given 3,000 tickets but up to 20,000 fans are estimated to have made the trip for their first European tie in 20 years.
Police considered calling off the match but Arsenal forced the match ahead with the Gunners head of communications Mark Gonnella saying: “The decision to go ahead was the best option and the safest option.”
Both Arsenal and FC Cologne face UEFA fines if they are proved to be “negligent” in match preparations or there is “a lack of order or discipline observed inside or around the stadium”.
Jhon Cordoba scored for Cologne after 10 minutes after a mistake by David Ospina. However Arsene Wenger's men turned it around as sub Sead Kolasinac equalized and Alexis Sanchez and Hector Bellerin sealed Arsenal’s victory.
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