All Blacks legend Richie McCaw shed 22kg, he looks completely different

Since retiring, the double World Cup-winner has become obsessed with ultra-hardcore marathons and has shifted a lot of that weight to give him a speed advantage.

The 41-year-old, who weighed 107 kg, is now closer to 85kg since dropping the weight.

For context, that's a weight drop of over three stone.

McCaw, the epitome of rugby excellence, is a New Zealand sporting legend. Born on December 31, 1980, in Oamaru, New Zealand, McCaw rose to prominence as a dynamic and tenacious flanker.

His illustrious career with the All Blacks saw him become the most capped player in rugby union history, with numerous accolades including two Rugby World Cup victories in 2011 and 2015, both as captain.

McCaw's leadership, unmatched work ethic, and unparalleled skills on the field have solidified his status as one of the greatest rugby players of all time, inspiring generations with his relentless pursuit of greatness.

Below, we look at five other rugby stars who transformed their bodies to get themselves into top condition.

The Wallabies legend started out as an skinny 78kg teen who worked day in and day out to transform himself, with his size and strength came at a cost, Pocock told Australian Story.

Vickery is a former English rugby union player, known for his powerful scrummaging and leadership on the field. He earned 73 caps for England and was a key figure in their 2003 Rugby World Cup victory.

He wrote on Instagram: "So an idea over two years ago to be in the best shape of my life to celebrate 20 years on from winning the rugby World Cup… it’s been an interesting journey full of highs and lows but have loved the process but more importantly the people who have helped along the way @chrisbradley.uk for lighting the the flame and always being there for me.. @propowell_2001 you are the most wonderful person not just for putting the plan together but being there consistently as a friend and mentor.. but to everyone at @wsf.uk for the friendship and positive energy.. the @severnsidegym crew for the smiles and thumbs up at 5 o’clock in the morning doing cardio in the freezing cold … and couldn’t forget about mr happy @adbarnes00 🤣🤣 .. friend’s family and my awesome team @ragingbullclothing & @no3restaurants thank you 🙏🏻… @stillmovingmedia legends as always….have an idea get a plan and follow it through team .. I’ve already got another idea and if you would like me to make a bit more of it so you can understand it please let me know and will do my best to share the next chapter.. had to play this song as it really moves me .. sorry team."

When he was a prop for the Wallabies Matt Dunning weighed 130kg and was constantly mocked for his tubby frame.

But since retiring from rugby union the 35-year-old has lost a staggering 40kg, dropping from 25 per cent body fat to just 11 per cent in six months.

He looks amazing.

England flanker/hooker Fleetwood was always a fitness freak, but during lockdown she has taken it to another level. She's been documenting her journey, sharing training routines and recipe ideas on her Instagram along the way.