Rob Burrow podcast: Prince William nicknamed One Pint Willy

Mike and Zara Tindall were married at Canongate Kirk, Edinburgh in 2011

Ex-rugby star Mike Tindall has confessed to giving the Prince of Wales the nickname One Pint Willy as a joke about his beer drinking.

Tindall made the admission as he appeared with wife Zara - the prince's cousin - on Rob Burrow's podcast.

He said: "The Prince of Wales is known to me as One Pint Willy because he's not the best of drinkers."

He added he came from a sport "built on the social aspect with a couple of beers being sunk quite often".

Tindall is married to the King's niece Zara, an equestrian who was voted BBC Sports Personality of the Year in 2006

After revealing the nickname, Tindall says: "Oh my god. It's out there now. Sorry sir."

His wife can be heard gasping and saying: "You're in so much trouble!"

Tindall won 75 caps for England and was a member of the squad which won the Rugby World Cup in 2003.

He is married to the King's niece Zara, an equestrian who was voted BBC Sports Personality of the Year in 2006.

Tindall retired from rugby union in 2014 after 17 years in the sport

In the podcast, the couple reveal they call each other "munchkin" and Zara has another two-word nickname for Mike in her phone which ends in '"kitten".

Called Seven: Rob Burrow, the podcast sees the rugby league legend and his wife Lindsey interviewing seven sporting greats, asking them seven questions each.

Motor Neurone Disease (MND) Association patron Burrow, who uses AI technology and recordings of his voice to communicate, was helped by the charity with eye-gaze technology to make the series.

Listen to Seven: Rob Burrow on BBC Sounds

In the episode, Mike said he regretted not encouraging his father to make some lifestyle changes after he was diagnosed with Parkinson's disease in 2003.

"He probably had the symptoms for a year or two before that but, being a typical bloke from up north, decided to ignore most of them for as long as he possibly could," said Mike.

"I look back now with the disappointment that I didn't take more time to do more stuff then because I would have made him make changes.

"I wish I could have told my dad to exercise more, to change his diet and live a bit healthier and this could have led him down a different path.

"He's 20 years in now. He's never going to get better obviously. He's only slowly getting worse."

Zara Tindall's mum, The Princess Royal, is Royal Patron of the MND Association

Burrow asked the royal couple whether they thought their three children Mia, 9, Lena, 5, and Lucas, 2, would follow in their parents' footsteps and become huge stars in the world of sport.

"Potentially, maybe," said Zara, "but I guess you never want to push them too much because they may not want to do any of it".

"I think we've tried to give them both sides of our sports," she explained. "They all know how to ride and they've been around the horses. They've also all played rugby to a certain level."

In the podcast series, Burrow is asking all of his guests what their advice would be to their seven-year-old selves.

Zara replied: "Maybe I should have listened to people a little bit more."

Mike said: "Try more.

"I felt that sometimes I always lived in a safe zone because I hated failing so much that I wasn't prepared to give it a go sometimes," he explained.

"I would say to myself just push that boundary a little bit more because ultimately you only learn by making mistakes."