Gianfranco Zola says the reports of corruption in football make him "sick" and believes everyone has a responsibility to "kill off those things".

Ex-Premier League striker DJ Campbell was one of six people questioned by police in connection with allegations of fixing aspects of football matches. All have since been bailed.

On corruption in football, Zola said: "It makes me sick. If you love this game then you don't want to see these things but it happens everywhere - it happened in Italy, in this country and other countries.

"It is our responsibility to protect the game and make it the way we want. We have a responsibility to kill off those things to make it better.

"In sport it is the worse thing that can happen and I can only be hard on that. I believe the majority of the players and professionals feel the same. Unfortunately you do get bad people and we need to make sure we protect it [football] because that is the way we love it."