Chief Inspector Adrian Knight from Warwickshire Police says his officers were 'subjected to extreme violence' as clashes broke out in a pub yesterday ahead of a match between home-side Nuneaton Town and Lincoln City.
More than 80 people arrested in the build-up to a non-league football match have been released on bail.
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Around 70 people were taken away and offered support.
Wasps take on Exeter this Saturday and the Metropolitan Police have said there will be a full review of policing operations.
A member of public alerted the police after discovering the body.