Weight expectations: The five heaviest players in the U20 Six Nations

The U20 Six Nations 2026 is heading towards its finale, but before the competition wraps up, we still have time to identify some of the biggest heavyweights in the player pool.

From offspring of former greats to rising stars of URC sides, here are five of the biggest operators of the U20 Six Nations that should be considered big threats… literally.

Sonny Tonga’uiha (England – 147 kg)
The (giant) apple doesn’t fall far from the tree, as 147 kg Sonny Tonga’uiha is following his father’s footsteps, not only because of his impressive physique but also due to his on-field impact.

The Northampton Saints front-rower, who has represented England at U18 and U20 level, is a moving sledgehammer that can break through most tackles, leaving a trail of destruction behind him.

However, his scrummaging prowess also deserve to be highlighted, especially after his strong performance versus Scotland a few weeks ago, a match in which Tonga’uiha earned two scrum pens for his side.

At 19, Tonga’uiha is a promising front-row talent with the size and power to make it into the senior national team in the next few years and unleash a frightening new era for England’s front-five.

Ruben Pargade (France – 133 kg)
Probably one of Bordeaux-Bègles and France’s greatest ‘hidden secrets’, Ruben Pargade is without a doubt one of Les Bleus’ brightest front-row talents of the last decade.

At 19 years old, weighing 133 kg and standing 1.94 metres tall, Pargade is a behemoth that can easily turn any opposing scrum pack from the inside out, as seen against Ireland in the U20 Six Nations opener.

However, another thing to consider is his proficiency to get over the whitewash, having already bagged two tries in this year’s Six Nations, winning the collision battle every single time.

Having already debuted for the Investec Champions Cup holders, Pargade might be the next big thing for the Les Bleus, as they are searching for the future holder of the tighthead jersey with the UBB front-rower possessing the right profile and size.

Enoch Opoku-Gyamfi (Italy – 142 kg)
Italy’s Enoch Opoku-Gyamfi is the sole non-prop representative in this list, and, ironically, he is the second heaviest player with a shoutout.

The 142 kg Bath lock is the second coming of the titan Atlas, as his monumental size gives Italy a strong advantage in the set-piece, stealing opposition’s throws and pumping gas in the scrum.

But the biggest benefit of having him on your side is his tenacity to run with the ball, launching his body against the opposition with all his might and making life hell for whomever has the unlucky task of stopping him in his tracks.

With Italy becoming a full-on threat in the Men’s Six Nations, Opoku-Gyamfi will certainly fit in well with the seniors when his time with the U20s comes to an end.

Ollie Blyth-Lafferty (Scotland – 136 kg)
Unlike most of his U20 team-mates, who are still trying to earn spots in their senior clubs, prop Ollie Blyth-Lafferty has already made over ten appearances for Edinburgh, an encouraging sign for his career prospects.

The 19-year-old is a scrum aficionado, putting his 136 kg to good use, piledriving the opposite loosehead prop to give Scotland a steady platform to launch an attack.

His strong performances in this year’s Six Nations are a staple of the tighthead’s qualities, consecutively winning the gain-line and knocking back tacklers like a bowling ball rushing down the lane.

With Zander Fagerson having already entered his 30s, Blyth-Lafferty’s rise is a positive development for Scotland as they seek to revitalise and strengthen their front-row options.

Maël Turpin (France – 127 kg)
Stade Montois’ Maël Turpin is the youngest name mentioned in this list, but his 127 kg couldn’t go unnoticed, making him one of the heaviest operators in the U20 Six Nations scene.

Although Ruben Pargade is the rightful owner of the French U20 No.3 jersey, Turpin’s talent and ability shouldn’t be underestimated, as his impressive physical build can change the outcome of any scrum battle.

But the tighthead prop’s talents don’t start and finish with his scrummaging ability, as his handling skills and hardline tackles make him an all-out threat.

With France fully focused on breeding the next generation of props, Turpin is a name to consider given his size, talent, and, of course, weight.