article_snippet: A 13-year-old has now been arrested by police investigating incident .
article_snippet: a 13-year-old boy has been arrested by detectives investigating an attack which left a football fan fighting for a 13-year-old boy life in hospital.
article_snippet: West Midlands Police said officers arrested the youngster on suspicion of assault at an address in Wolverhampton, just before 5am today.
article_snippet: a 13-year-old boy is the second person to be arrested by detectives investigating an attack on 44-year-old Watford supporter Nick Cruwys in Wolverhampton on Saturday, after an 18-year-old man was detained yesterday.
article_snippet: an 18-year-old man has since been bailed until April 8.
article_snippet: Police described the latest arrest as 'significant'.
highlights_snippet: Police arrested an 18-year-old yesterday who has since been bailed .
  
highlights_snippet: Officers investigating incident have now arrested a 13-year-old boy .