It had started just like any other kick-about in the park.  but a simple game of football quickly turned to tragedy when 16-year-old Luke Worgan died at the side of the pitch.

One year on and his family are no closer to discovering why he died. 

Now his parents are launching a health awareness appeal on the first anniversary of their son's death. 

Stephen and Hailey Worgan hope their call will help other families to avoid the heartbreak they have experienced. 

Luke had been playing football at Swansea College last October when he took a break to sit by the side of the pitch. 

When he stopped breathing, his friends quickly called for an ambulance. 

He died later at Singleton Hospital from what is believed to be related to Sudden Adult Death Syndrome. 

His parents are using the anniversary of the former Olchfa pupil's death to highlight the work of Cry - Cardiac Risk in the Young. 

The charity works to raise awareness of the symptoms of possible heart disease in young people, as well as supporting families affected by loss. 

Luke's father, Stephen, said: "It does not get easier as time passes. 

"When we wake up in the  morning we say we have to pick up a brave face from the drawer. 

"It has been a difficult time for everybody - we feel as if we have done something wrong. 

"We want people to be aware of the work of Cry, which can save lives. 

"As well as supporting families, it highlights symptoms which could mean heart problems. 

"We want to raise its profile so other families do not have to experience the pain of losing a child." 

Since his death, Stephen and Hayley have prevented Luke's brothers from taking part in sporting activities. 

Al, aged 14, and Jo, aged 10, are instead coming to the end of a series of medical tests to ensure they do not suffer from any health or heart defects. 

They will join the family at Luke's graveside in Oystermouth Cemetery this weekend. 

Meanwhile, the family is still waiting for the results of Luke's post mortem, which they hope will explain his death once and for all. 

And they are planning to set up a memorial charity in his name, to help other families who encounter similar experiences 

"We are berry grateful for people's help and support over the past year," added Mr Worgan. 

"We organised a number of fund-raising events for counselling charity Cruse, which has also been of great help to us 

"We hope that next year will be even better."