British & Irish Lions lock Ollie Chessum is facing one of rugby's most intimidating individual challenges on Saturday.
The Leicester Tigers star has the unenviable task of stopping the monstrous frame of La Rochelle's Will Skelton in the second Test against Australia in Melbourne.
Skelton, who stands at a whopping 6ft 8in and weighs 23 stones, was missing from last week's first Test defeat in Brisbane through injury but will be ready to leave his mark on the series.
And that means a clash that can only be likened to the Royal Rumble as the pair prepare to lock horns.
Chessum boasts an imposing frame himself at 6ft 7in and weighing 18.7 stones and the 24-year-old Englishman admits he can't wait to get stuck into his opposing number as Australian look for the victory needed to keep the series alive.
"You have got to [embrace this] because this is everything you have ever dreamt of. There's no better time to walk towards the challenge than this one," Chessum told reporters.
"You'd be kicking yourself in years down the line if you didn't. This is where – and I can't speak for everyone, although I am fairly sure I can – everyone wants to be on the biggest stage with the chance to win a Lions series at an arena like the MCG in front of our families, there's nothing better. I am properly looking forward to it."
"I've played against Will [Skelton] in a Champions Cup with Leicester away at La Rochelle and it didn't end well for us that day.
"Will is what it says on the tin – he's a huge human being and it's a different challenge, different to the one we faced last week but one that I'll embrace. He is an unusually large human being! He brings a completely different challenge around the set piece and their phase play. You try stopping someone who is 150 kilos or whatever it is."
What makes Skelton stand out from other players?
Skelton's physicality is his standout feature. The New Zealand-born star wears size 19 boots that have to be custom made in Japan.
But alongside his huge frame is a player capable of leading teams to glory.
Skelton has been part of four Champions Cup-winning teams – twice at Saracens and twice with La Rochelle.
The 33-year-old also has one Super Rugby and two Premiership titles to his name.
And Chessum believed the inclusion of Skelton is going to turn the physicality of Saturday clash up a notch.
"The physicality aspect is just going to go up a notch. It was always going to anyway but with the bodies they brought in with Rob Valetini, it is a similar story there," Chessum said.
"They're going to draw on every emotional aspect of this game that they can. They are 1-0 down in the series but they are at the MCG, in front of their fans, on their home soil with the series on the line.
"They know they're going to throw the kitchen sink at us and that's a real statement in the team they've named as well. So it's a proper challenge laid down to us
"This is everything that international rugby is all about. Physicality goes up through the roof, the intensity and the speed of the game goes up through the roof and you have to walk towards it because if you don't you'll get found out pretty quickly.
"So I'm not quite ready and raring to go, obviously we're a couple of days out, but I'm chomping at the bit to get into it and I think everyone else is as well."
Chessum admits his cricket-loving family are excited at the prospect of him playing at the iconic 90,000 capacity MCG (Melbourne Cricket Ground).
"The family are massive cricket fans. My little brother is going for a tour of the MCG on Friday for the cricket side of stuff and then he will be at the game on Saturday for the rugby.
"I have only seen it on TV and I have never been. We were lucky enough to play at the Sydney Cricket Ground (SCG) last time when we toured [with England] in 2022 but this will be on another level.
"It seems to be more of a common thing out here but you never really dream of playing at a cricket ground at home and the whole atmosphere changes.
"The pitch being out in the middle, it will feel like a real coliseum looking at the MCG from watching it on TV and the Boxing Day Tests. It will be unbelievable, I wouldn't have said bucket list because I wouldn't have dreamt of doing it but it will be proper, proper special."
Chessum will line up alongside captain Maro Itoje – a role that is not unfamiliar for the Leicester ace.
The pair have played together for England and will need to work in tandem to nullify the extra power on show for the Wallabies.
"I suppose the familiarity aspect having played with Maro for all my matches – I'd imagine he has played in every game that I have played in," Chessum said.
"We've worked together a lot whether I am at six or in the second row. I think the general feeling of the squad is that we feel we have been playing together a lot longer than we have. You start to get more and more familiar with the lads around you and what everyone else is expecting of each other so that's really good.
"Tom Curry and Tadhg Beirne did a very good job of setting the intensity last week. Sat on the bench, I'd been sat down for about 30 seconds when that first hit went in. I think we knew from then on that the tone was set for the game, for us and for them. I expect no different this week, I expect it to go up another level.
Maro said it to us in the week, what we produced last Saturday will not be good enough this Saturday. There's a whole different beast coming down the road and we'll have to front up and tackle it head on.
"We said right from the start that we want to lay down a marker and be the best Lions team there has ever been. If we are to do that, we've got to make ourselves part of that history and do the job at the weekend,
"Being here, the whole imposter syndrome, can very much be a thing. You think, "How on earth did I get here?" But you genuinely have to believe in why you're here and why Faz (Andy Farrell) has put the trust in you to play in a Test match."