The team is playing under the banner of "Invitational XIII" after a court ruled the Tonga National Rugby League was the only authority able to operate the official national side, Mate Ma'a Tonga, following a long-running dispute between coach Kristian Woolf and the TNRL.
The dispute has cast uncertainty over whether supporters, dubbed 'the world's best fans', will be out in numbers this weekend.
Two years ago, you couldn't escape the sea of red. Tongan flags were sold-out in shops and fans were flooding the streets of Auckland.
But co-founding member of the Mate Ma'a Tonga team, Will 'Ilolahia, said there was a tangible change in support for this weekend's clash.
"The vibe is no longer there, there's not as many red flags and red cars flying around the place and tooting their horns and all that. It's not there like it was in previous years."
"Our community is divided because we are loyal to the players you know, the players have actually extended our status more so on the global scene and our fans have earned the best fans in the world number but at the same time our people, when they know the truth they start to question it and I think that's what's happening."
For the first time since the team's inception, 'Ilolahia said he would not be watching the game live.
"This is the first time that I've never attended a national Tongan team because it's not a national Tongan team."
Chair of the Auckland-based Tongan Advisory Council, Melino Maka, agreed with 'Ilolahia, saying some would attend but not at the level they had seen at past events.
"They thought because they have the Tongan star players and they thought regardless of what they're doing that the people will still turn up."
"People will turn up to a Tongan game if a Tongan national team is playing. This is not a Tongan game, this is a game organised by the International Federation."
"It is sad because it is something that we as Tongans were proud of - the Mate Ma'a Tonga team - and this is something that people will go out and support but now it's just really divided us."
But community leader Manase Lua, who has been following the team ahead of their campaign, said support for the players was still strong with many of the Tongan community attending a Kava ceremony in Hamilton this week.
"It was a great vibe. If you look online, social media, those of you who can read Tongan actually, the vast majority of people who comment from New Zealand and even overseas fully support the boys.
"They understand that it's not their fault that these politics happening have caused a riff and a divide, they are just there to support the players.
"The players are here. The fact is they're playing and they're Tongans, so they will be there to support in force."
Lua said the controversy might have caused a split but the team still needed support: "The fact is, the boys are here. Tongans should put the politics aside, let that sort itself out and come out and support the boys."
"They're Tongan, they're playing in red. They're here to play for the country and the cause and Tongans should support them - they're still the same team that were here last year."
After their game against Great Britain, the Invitational side will play Australia the following weekend in Auckland.
Tonga Invitational XIII:
1. Will Hopoate, 2. David Fusitu'a, 3. Michael Jennings, 4. Kotoni Staggs, 5. Daniel Tupou, 6. Tuimoala Lolohea, 7. Ata Hingano, 8. Andrew Fifita, 9. Siliva Havili, 10. Sio Siua Taukeiaho (co-captain), 11. Ben Murdoch-Masila, 12. Manu Ma'u, 13. Jason Taumalolo (co-captain).
Interchange: Sione Katoa, Addin Fonua-Blake, John Asiata, Sitili Tupouniua, Junior Tatola, Konrad Hurrell, Tesi Niu.
Great Britain Lions:
1. Lachlan Coote, 2. Jermaine McGillvary, 3. Zak Hardaker, 4. Oliver Gildart, 5. Ryan Hall, 6. Gareth Widdop, 7. Jackson Hastings, 8. Chris Hill, 9. Josh Hodgson, 10. Luke Thompson, 11. John Bateman, 12. Elliott Whitehead, 13. James Graham (c). Interchange: Josh Jones, Tom Burgess, Jonny Lomax, Alex Walmsley, Jake Connor, Jack Hughes, George Williams, Daryl Clark.