Man United and Chelsea top table of Premier League's most dangerous grounds

A chef at Manchester United was left 'sick and confused' after touching a faulty light switch and giving himself an electric shock, while a steward at Chelsea had a pint of beer thrown over his head by a 'helpful' fan after a spark from a burning flare went into his eye.

The above are two of a number of incidents which took place at Premier League grounds over the course of a year, revealed by a Freedom of Information request.

Fans falling down steps and breaking bones, a prom night student sliding backside first down a railing and tumbling backwards and a ball boy breaking a wrist all feature.

Data shows United and Chelsea's home grounds topped the table, with five reported incidents to the Health and Safety Executive each.

The report discloses that the 'senior' chef at Old Trafford inadvertently touched a button in the kitchen that was missing a cap. As a result his finger hit a live fuse, resulting in a 'loud bang'.

'He burnt the end of his finger and felt the current travel up his arm and across his chest,' the report added. 'He felt sick for a while and confused'.

A medic arrived and the chef's blood pressure was taken, along with an ECG. The results came back fine and he returned to work. An electrician was called and the offending button was isolated.

United launched an investigation but, according to the report, nobody would admit to having removed the cap.

Also at Old Trafford, one employee was left suffering from smoke inhalation after fans protesting about the club's ownership lit smoke bombs and flares close to turnstiles.

Despite wearing a protective mask, the worker became ill and started vomiting before being taken to hospital.

Elsewhere, a carpenter working on a bar at the stadium drilled through his own thumb