Goal can confirm the delay was prompted after Koln supporters, many of whom appeared to not have tickets, attempted to swarm the home section at the Emirates Stadium.
Despite there only being around 3000 tickets available to away supporters, an estimated 20,000 supporters of the Bundesliga outfit have descended on north London ahead of the fixture.
The match is now poised for a 21:05 BST kick-off, with Arsenal announcing the delay 50 minutes before the originally scheduled start.
Alexis Sanchez is set to start for Arsene Wenger’s side for the first time since his failed move to Manchester City, with Olivier Giroud and Alex Iwobi also recalled
