Wales’ Jamie Roberts is relishing the “personal challenge” of Fiji’s Nemani Nadolo at the Millennium Stadium this weekend.
Before taking on world champions New Zealand next week, Wales host a Fijian side who they thrashed in their last meeting at the 2011 World Cup.
The biggest threat Fiji offer is Nadolo - the 6 foot 5, 19 stone powerhouse - boasting 13 tries in 15 Tests. He will line up opposite Roberts who welcomes this duel.
"Nadolo is a huge physical specimen. He is a rugby athlete, he's quick, he's 19 stone and that is the challenge," Roberts said.
"I have to take that as a personal challenge this week and make sure he doesn't get any go-forward for Fiji, because if he does they have got some very dangerous players. He can offload the ball as well, so that is my responsibility to the team this week.
"This guy will come straight at you. It's a bit of a 'man test' on Saturday. We have to front up, and I am looking forward to it.
"Facing any player is daunting. On the international stage you're always a bit nervous, always on edge. The minute you stop being on edge is the minute it doesn't mean anything to you.”
Frightening
Nadolo is not the only colossal presence in the Fiji ranks and Roberts does not foresee anything less than a bruising encounter in Cardiff.
He said: "There is always pain in international rugby. You have to put your body through it, and it's about preparing psychologically for that.
"You just get your shoulders ready and get your mind prepared because international rugby is about the mind, it's about desire, it's about going through pain.
"You are in a world of hurt afterwards, but that feeling of pain after you've won is far better than after you have lost, I can assure you.
"I am nervous for every Welsh game, and you certainly look at this Fiji back line and they are frightening players. It's very hard to stop players of that size coming at pace.
"I've faced a lot of good players in my career, and probably none as big as [Nadolo], but it's about utilising our strengths to counter his weaknesses.
"That's what international rugby is about, those one per cents. You analyse players - you look at their strengths, you look at their weaknesses - and we have to do that as individuals and as a collective."
Brains and brawn
Roberts believes that Wales’ ability to combat Fiji’s muscle with their rugby intelligence will be key to victory.
"It is about playing clever rugby," he continued.
"You know if you have a loose kick against these guys, that's what they love.
"They will chuck the ball from behind their own try line if they think they have a sniff. As a defensive leader, that's the message I will be trying to get across to the boys - complete focus and stopping them from taking quick tap penalties, quick throw-ins, that sort of thing.
"A lot of the times we play against the top southern hemisphere sides, and in their 22 they will play rugby with less risk and they will either kick out or kick long and it's about the percentages, whereas Fiji tend to throw it about from anywhere.
"That can work for them and work against them as well. We have to tip the scales the other way and make it work against them by pressurising them while in defence."