"I had this mental image of a jigsaw puzzle with family, career, self-development, fun, and all that kind of stuff. The centrepiece that was missing to me was sport.

"I thought it would be a nice way to cap the decade off to get into this sport, throw myself into the deep end with Invictus, see how I do and then for me once this is over that's going to make me feel like I have completely dominated my injuries.

"That's the last piece of the puzzle for me and it's a nice way to round off the ten years.

"I've still got two swimming events yet and I'd like some gold. If I can do that it's pretty much the perfect run for me."

He is supported at the games by his wife Becky and two youngest children, while his daughter Kezia is at school at home.

"They've been shouting at me saying 'you need to go faster'," he said of Mason and Evelyn's starring role at the Games

"I don't even really think my daughter knows what the word proud means. She came running over and said 'daddy I'm really proud'

"It's been really cool."

"I got the first silver and she took it. Then my boy got upset so I thought damn, I've got to win another one now. And now I've got to win one for my daughter at home so I've got two swimming events to try and pull something off."