Fans are encouraged to get in quickly to secure the limited tickets remaining for Holden State of Origin II, at ANZ Stadium on Sunday, June 24.
NRL Chief Commercial Officer Andrew Abdo said ticket sales had been extremely strong in the lead-up to Game Two.
"The interest in this entire series has been strong and we would expect a crowd close to capacity on Sunday night," Mr Abdo said.
"There are still some good seats remaining, but they are limited so I'd be encouraging fans to get in quickly to secure the best vantage point for Australia's greatest sporting rivalry."
Close to 10,000 interstate travellers are expected to travel to Sydney for the Sunday night standalone encounter, which falls on the same weekend as the Holden Women's State of Origin, to be played tonight (Friday, June 22) at North Sydney Oval.
The NSW Government and its tourism and major events agency, Destination NSW, are showing their support for the Women's and Men's NSW Origin sides with the Sydney Harbour Bridge to be bathed in blue on game nights.
From 6pm on Friday and Sunday night, the Bridge will turn blue in support of the women's and men's Origin sides.
Supporters are encouraged to get to ANZ Stadium early on Sunday to take advantage of the precinct activations, as well as the pre-game entertainment which will form part of the Sunday scheduling.
Jet will belt out some of their classics as part of a trio of alternative Aussie acts on the night. Also performing will be The Rubens and Kingswood while the entertainment will be accompanied by a spectacular pyrotechnic and light show.
Steve Danielson, from the hit musical The Book of Mormon, will perform the National Anthem.
All tickets include public transport to and from Olympic Park.
Fans are encouraged to leave additional time for the security screening process when entering the Stadium. This process will include mandatory bag searches and personal checks.
Supporters can also take in another match between NSW and Queensland on the day in the precinct – the Wheelchair Rugby League Interstate Challenge will take place between New South Wales and Queensland.
The wheelchair match will take place at Quaycentre, Sydney Olympic Park at 3.30pm.
Holden State of Origin II is proudly supported by the NSW Government via its tourism and major events agency, Destination NSW.
For tickets, visit nrl.com/tickets.