Schoolboy, 13, arrested over Watford fan Nic Cruwys attack

The youngster was held at 5am and is being quizzed over the violence, which left Mr Cruwys fighting for his life. Police said today the arrest was 'significant' and that they are pleased with the probe's progress.

He has been held on suspicion of wounding and is the second person to be held following the violence that unfolded last Saturday.

Mr Cruwys, 44, from Hemel Hempstead, was with a group of friends when he was assaulted in Little's Lane.

He is said to be critical but stable in hospital. More than £25,000 has been raised to support him and his family in an internet appeal.

The 18-year-old arrested yesterday has been released on bail and must report daily to a police station. Conditions also ban him from Wolverhampton city centre on match days.

Det Insp Toni Naylor, from Wolverhampton's Violent Crime Team, said: "We are pleased with how the investigation is progressing and the arrest of a second suspect is significant.

"But this is not the end of our enquiry…it's only the beginning. I am now appealing to anyone who was involved in the incident to think about their actions and to do the right thing and contact us or hand themselves in to a local police station. We will leave no stone unturned to find the people involved and by coming forward you will be in a position to give your side of the story.

"We are extremely pleased with the amount of information we have received from the people of Wolverhampton and the wider football community from across the country, who having heard about the violence and have taken the step to provide information that could help our investigation.

"The family of the man assaulted would also like to extend their thanks for the support they have seen as they continue to juggle family commitments whilst their loved one remains in hospital."

Alternatively people can leave information anonymously by calling Crimestoppers the independent charity on 0800 555 111.