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After 11 hours and 40 minutes of exercise consisting of a 2.4-mile swim, a 112-mile bike ride and a 26.2-mile marathon run just about anyone would be on their kness.

But when Sam Davis from Barry, finished the Tenby Ironman on Sunday he knelt down due to more than exhaustion.

The knackered romantic popped the question to Georgie Anderson while crossing the finish line of the gruelling race.

The triathlete captured hearts across the country after a video of his proposal went viral - gaining more than 85,000 views on Facebook alone.

Sam, 25, who runs a poultry wholesalers in Barry, met intensive care nurse Georgie, when they were 17.

Describing her as being his rock throughout his gruelling Ironman training, Sam decided to buy a ring for Georgie after a training injury made him realise how supportive she had been.

Sam said: "I lost my granddad to cancer around a year and a half ago and decided I wanted to give something back to Velindre cancer centre.

"I came up with the idea with my best mate that I would compete in the Ironman Wales, having never taken part in a triathlon of any sort before.

"So I bought a training book online and stuck to it like the bible.

Watch the Ironman Wales start:

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"I started the gruelling training program which along side working a physical full time job almost killed me!

"I'm telling you getting up at 4am for one day is bad enough... try it for eight months!

"All the way through I had this amazing support from Georgie.

"She went away with the girls to Vegas at week 19 of 30 week training program. This is when the drama struck!

"I came off my bike at 30mph head first into a stone wall. If I didn't have my helmet on I'd be dead!

"I couldn't walk for three days. On the one side it slowed my training down but on the plus it made me realise how much I need Georgie and how selfish I had been all year.

"So I limped into Cardiff with the help of mum and bought her a diamond ring!

"Even up to the last loop of the marathon I didn't know where the sign was. It just happened mum managed to get it to me and here I am.

"It seemed like the perfect time - the end of one truly epic journey and the start of another.

"A 2.4 mile swim, 112 mile bike ride, 26.2 mile marathon, £2000 raised for Velindre and a beautiful fiancée - all in 11 hours and 40 mins.

"Some would say I am an Ironman with a soft heart."