Watch: Inside look at daunting tunnel that awaits Arsenal in Belgrade

For Arsenal to prove to Watford's Troy Deeney that the team doesn't lack cojones, it simply has to make it out of the tunnel at Red Star Belgrade's stadium safely.

It sounds like an easy task - if you're not claustrophobic or easily startled by loud noises.

Ahead of Arsenal's Europa League tie Thursday, footage was released of the tunnel that players must walk through before surfacing near the pitch where over 50,000 raucous fans will be waiting.

The footage first shows a narrow tunnel with security officials who are wearing what looks like riot gear. After a long walk past walls covered in graffiti and explosions going off overhead (hopefully from firecrackers), players are then greeted by the deafening chants of supporters.

The Europa League encounter comes less than a week after Deeney accused Arsene Wenger's men of lacking cojones following Watford's upset victory over Arsenal.