Benji Marshall has an on-going shoulder problem

But Kiwis' coach Brian McClennan said he did not know if the Wests Tigers duo would play as they have been told to have shoulder operations by their club.

New Zealand are expected to add some English-based players after the Super League Grand Final on 15 October.

They include Lesley Vainikolo (Bradford) and Ali Lauitiiti (Leeds).

Their clubs are still involved in the Super League play-offs, hence the delay in them being named.

Two props who are heading to Super League clubs - Paul Rauhihi (Warrington) and Iafeta Palea'aesina (Wigan) - have already been included.

Marshall was one of the stars of the show as Wests Tigers beat North Queensland Cowboys 30-16 to win the NRL title on Sunday.

"It's important for Benji to rule himself in or out," said McClennan, who added he had not had a chance to speak to Marshall since the Tigers' win.

Halatau is due to see a specialist on Wednesday and McClennan said his availability should be known once he has received the results of a scan.

The 40-man squad contains players for the up-coming Tri-Nations and also for the New Zealand A team.

New Zealand squad for Tri-Nations series:

Louis Anderson (New Zealand Warriors), Roy Asotasi (Canterbury Bulldogs), George Carmont (Newcastle Knights), Nathan Cayless (Parramatta Eels), Luke Covell (Cronulla Sharks), Greg Eastwood (Brisbane Broncos), David Faiumu (North Queensland Cowboys), Joe Galavao (Penrith Panthers), Awen Guttenbeil (New Zealand Warriors), Dene Halatau (Wests Tigers), Bronson Harrison (Wests Tigers), Lance Hohaia (New Zealand Warriors), Stacey Jones (New Zealand Warriors), David Kidwell (Melbourne Storm), Wairangi Koopu (New Zealand Warriors), Tevita Latu (Cronulla Sharks), Phillip Leuluai (Cronulla Sharks), Kylie Leuluai (Manly Sea Eagles), Peter Lewis (Parramatta Eels), Jamaal Lolesi (Wests Tigers), Steve Matai (Manly Sea Eagles), Hutch Maiava (Cronulla Sharks), Benji Marshall (Wests Tigers), Frank Pritchard (Penrith Panthers), Tony Puletua (Penrith Panthers), Frank Puletua (Penrith Panthers), Paul Rauhihi (Warrington), Iafeta Palea'aesina (Wigan), Marcus Perenara (Parramatta Eels), Iosia Soliola (Sydney Roosters), Jeremy Smith (Parramatta Eels) Clinton Toopi (New Zealand Warriors), Tame Tupou (Brisbane Broncos), Glen Turner (Melbourne Storm), Nigel Vagana (Cronulla Sharks), Manu Vatuvei (New Zealand Warriors), Brent Webb (New Zealand Warriors), Jake Webster (Melbourne Storm), Paul Whatuira (Wests Tigers), Ruben Wiki (New Zealand Warriors).