A man has been arrested after a goalkeeper was allegedly punched during a League Two football match.
Bury goalkeeper Cameron Belford was taunted by a number of people who invaded the pitch during the match at Chesterfield on Monday.
Police confirmed a man had been questioned and they would be studying CCTV pictures and liaising with the club.
Chesterfield Football Club said anyone convicted would face an indefinite ban.
The incident happened after one of the home side's goals in a game Bury went on to win 3-2 and clinch promotion to nPower League One, preventing the Spireites clinching the League Two title.
Mr Belford has made an official complaint.
Insp Russell Dakin, of Derbyshire Police, said: "It would appear a fan has encroached on the pitch and assaulted the goalkeeper.
"One person has been arrested and we will be scanning the CCTV system and liaising with the club and members of the media and collating as much evidence as possible."
Chesterfield has posted an appeal on its website to try to identify those involved in the pitch invasion.
Stadium manager Colin Nellist added: "The very minimum that will happen to this person is they will get a ban from the club and whatever happens thereafter will depend on the courts.
"But as soon as we ascertain the identity of this person he will be banned from the club until further notice because we take this very seriously indeed."
http://www.bbc.co.uk/news/uk-england-leicestershire-13192968
