A whopping 19 St George Illawarra Dragons players have been picked to represent their respective teams in the NRL Representative Round this weekend.

Dragons fullback Josh Dugan, back-rower Tyson Frizell (both Australia) will potentially line up against prop Russell Packer (New Zealand) – who has been named in the Kiwis' 20-man squad – in the annual Trans-Tasman Test in Canberra this Friday night.

Earlier that afternoon in the nation's capital, three young Dragons – Blake Lawrie, Reece Robson and Jai Field – will play for the Junior Kangaroos against Junior Kiwis duo Patrick Herbert and Steven Marsters.

Taane Milne (Fiji), Leeson Ah Mau, Tim Lafai (both Samoa) and Siliva Havili (Tonga) will all play at Campbelltown Sports Stadium in their respective Pacific Tests on Saturday.

Meanwhile a trio of Dragons will represent both the City Origin and Country Origin teams when they do battle in Mudgee this Sunday afternoon.

Tariq Sims, Paul Vaughan and Jack de Belin have been selected for Country, while Cameron McInnes, Jake Marketo and Hame Sele will play for City.

Jacob Host will also act as City Origin's 18th man. 

Joel Thompson (Country Origin), Euan Aitken (Country Origin) and Nene Macdonald (PNG) have all unfortunately withdrawn from their respective teams but are in no doubt for the Round 10 clash against the Sharks.

Dragons skipper Gareth Widdop was also ruled out to represent England due to his knee injury suffered on Anzac Day against the Roosters.

Australia

Josh Dugan

Tyson Frizell

New Zealand

Russell Packer

Junior Kangaroos

Blake Lawrie

Jai Field

Reece Robson

Junior Kiwis

Patrick Herbert

Steven Marsters

Fiji

Taane Milne

Tonga

Siliva Havili

Samoa

Tim Lafai

Leeson Ah Mau

City Origin

Cameron McInnes

Hame Sele

Jake Marketo

Jacob Host (18th man)

Country Origin

Tariq Sims

Jack de Belin

Paul Vaughan