Below is a look at five players who lost a ton of weight after their rugby union careers ended.
#1. Richie McCaw
Rugby fans cannot believe McCaw's body transformation as the All Blacks legend showed off he has lost muscle mass since hanging up his boots.
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 87kg since dropping the weight.
For context, that's a weight drop of over three stone.
2. Jonathan 'Jiffy' Davies
Less Guinness and more hard work has seen the former Wales star transform himself during lockdown. He looks incredible!
#3. Phil Vickery (England)
The World Cup-winning prop has transformed his body since hanging up his boots. Vickery, who won the 2011 series of
Celebrity Masterchef, has recently opened his new
Cheltenham restaurant, No.3, after the Coronavirus pandemic delayed first orders. He's literally half the man he used to be.
4. Lee Mears (England)
The former Bath and England international rugby player retired from the game due to a life-threatening heart condition. Trying to stay healthy has since became a priority and it's fair to say he's looking amazing!
#5. Chris Robshaw
Former England captain and flanker Robshaw has dropped almost 12kg after returning from the sport last year.
Robshaw, who is now 36 years old, started playing for the national team in 2009 and amassed a total of 66 international caps.
He spent the majority of his career at Harlequins, where he played from 2005 to 2020, and concluded his playing days in the United States with the San Diego Legion.
IFollowing his exclusion from the 2011 World Cup team, Robshaw made a comeback to the England squad in 2012 as the captain for the Six Nations campaign, but injuries took a toll on him.
He's slimmed down dramatically since retiring, dropping from 112kg to close to 100kg as he continues to train for the 2023 London marathon.
Robshaw completed the run in 3:51.48.
He said: "I am pretty nervous about running the marathon, but I’ve always wanted to take part and hopefully complete one.
"I am running for my and my wife’s charity, the
Kerslake Robshaw Foundation. Through the charity, we aim to empower young lives through music and sport – something very close to our hearts.
"It is completely different to rugby training. With rugby, we wanted a good cardiovascular base but it was still all about strength and anaerobic fitness – so short bursts of high intensity.
"I think I will need to lose a little more mass before I get to 23 April."