Hosea Gear (L) started 11 out of 13 Wellington games this season

NZ Maori, who won this event in both 2004 and 2006, will take on Canada and Ireland A in their pool fixtures.

The squad includes Hosea Gear, the brother of All Blacks Test winger Rico.

Meanwhile, United States coach Peter Thorburn has named Newport Gwent Dragons centre Paul Emerick in his 31-man squad.

Leeds prop Mike MacDonald is also included while Waterloo scrum-half Chad Erskine is out of the tournament after suffering a broken ankle.

We hope the strong expat Kiwi community in the UK will come out and support us Mike MacDonald NZ Maori coach

The US open up the event against England Saxons at Sale's Edgeley Park on 18 May before playing Scotland A in Henley on 23 May.

New Zealand Maori take on Canada at Franklin's Gardens on 25 May and Ireland A at Exeter's Sandy Park on 29 May.

"We hope that the strong expat Kiwi community in the UK will come out and support us," said coach Donny Stevenson.

"This is the beauty of this team - we are able to give young players the opportunity to play international rugby."

England Saxons also play Scotland A at Twickenham on 28 May.

The finals day, featuring all six teams, will be held at Twickenham on 2 June.

The competition will be held in England for the first time, normally it takes place in either the United States or Canada.

New Zealand Maori squad:
Callum Bruce (Otago), Keith Cameron* (Otago), Aled de Malmanche* (Waikato), Tamati Ellison (Wellington), Hosea Gear (Wellington), Brendan Haami (Taranaki), Glen Horton* (Otago), Jason Kawau* (Southland), Tanerau Latimer (Bay of Plenty), Angus Macdonald (Auckland), Luke Mahoney (Wellington), Ben May* (Tasman), Liam Messam (Waikato), Kristian Ormsby (Counties Manukau), Shannon Paku (Wellington), Isaac Ross* (Canterbury), Chris Smylie (Otago), Warren Smith (Bay of Plenty), Dwayne Sweeney* (Waikato), Anthony Tahana (Bay of Plenty), Pehi Te Whare (Southland), Hayden Triggs* (Manawatu), Rua Tipoki (capt, Canterbury), Hoani Tui* (Wellington), Scott Waldrom (Taranaki), Craig West* (Waikato).
* Denotes new cap

United States squad:
Mike French (OMBAC), John Vitale (Chicago), Chris Osentowski (Belmont), Mike MacDonald (Leeds), Blake Burdette (NYAC), Mark Crick (PAC), Mike Mangan (Denver), Hayden Mexted (St Louis), John Van Der Giesen (Santa Barbara), Ben Wiedemer (Belmont), Mark Aylor (Denver), Louis Stanfill (UC, Berkeley), Inaki Basauri (Massy Essonne, Paris), Todd Clever (OMBAC), Dan Payne (OMBAC), Patrick Quinn (Denver), Tasi Mounga (SF Golden Gate), David Williams (Denver), Kimball Kjar (Park City), Valenese Malifa (Belmont), Mike Hercus (capt, Belmont), Vaha Esikia (San Mateo), Scott Peterson (Chicago), Albert Tuipulotu (San Mateo), Salesi Sika (Narbonne, France), Mike Palefau (Narbonne, France), Chris Wyles (Nottingham/Northhampton), Paul Emerick (Newport Gwent Dragons), Andrew Osborne (Belmont), Francois Viljoen (Belmont).