Yahoo Sports reports that As a child Sam Mckay suffered from chronic kidney disease.

But when he was five years old he had a life-changing kidney transplant, thanks to a donation from his dad, David.

Now a healthy 16-year-old, Sam, from Elderslie in Renfrewshire, is representing Scotland as part of the inaugural Four Nations Transplant Football Championship.

And David, 51, a sports coaching lecturer at Glasgow Clyde College, is team coach.

"I'm really, really proud to see how ill he's been at times and what a difference the kidney has made," he said.

"This would certainly not be possible were it not for transplantation.