BBC Sport's guide to Australia's Tri-Nations squad.
In his second stint as national coach, having been in charge for two matches against New Zealand in 1998. Steered Brisbane to five premierships and Queensland to four State of Origin series wins.
Carroll played for New Zealand in the 2000 World Cup
Brisbane, centre, aged 25, 2 caps
A tough competitor with an uncanny ability to break tackles, he made his Test debut in the Anzac Test against New Zealand in April.
North Queensland, full-back, aged 22, 0 caps
One of the most exciting players in the NRL. Possesses electrifying pace and an eye-catching sidestep.
Newcastle, hooker, aged 26, 14 caps
Was on the 2001 and 2003 Kangaroo tours and led the NSW Blues to a memorable series win over Queensland, reinforcing his standing as the best number nine in the world.
Brisbane, loose forward, aged 28, 1 cap
A controversial selection after winning five caps for New Zealand and playing for them in the 2000 World Cup. Carroll, who made his debut in the draw in Auckland, is one of the game's biggest hitters.
Brisbane, prop, aged 28, 9 caps
Rated by his peers as the hardest hitter in the NRL. One who usually drives the team forward and, as a Kangaroo tourist in 2001 and 2003, his experience will be invaluable.
St George, centre, aged 25, 0 caps
Was ready to give the game up three years ago but was revitalised after winning a NSW call-up. Now he is on the verge of playing for his country.
Sydney Roosters, second row, aged 27, 5 caps
One of the highest work-rates of any player in the NRL. Impressed on last year's Kangaroo tour and his goalkicking could prove vital.
Penrith, scrum-half or stand-off, aged 26, 9 caps
Gower was in career-best form for the Panthers during the NRL finals series and will be involved in an interesting battle with Brett Kimmorley to secure the starting spot at half-back.
Melbourne, stand-off or loose forward, aged 27, 4 caps
A survivor from Australia's 2000 World Cup-winning team, Hill earned a recall to the international scene after guiding Melbourne into the finals series. Has a brilliant passing game.
Parramatta, second row, aged 25, 2 caps
Had an outstanding season for the NSW Blues and was a shining light in an otherwise below-average Parramatta side. Finished the year as the top tackler in the NRL.
Rooney's a clinical finisher
Newcastle, second row, aged 30, 7 caps
Unavailable for last year's Ashes Series, he is among the game's elite when at his best. The hard-running forward has signed with Manly for next season.
Cronulla, scrum-half, aged 28, 10 caps
His experience and ability to perform at the highest level made him a certainty for the Tri-Nations despite an injury-hit year. Player of the series in last year's Kangaroo Tour.
Brisbane, captain, stand-off, aged 27, 22 caps
Has made a seamless switch from full-back to stand-off for the Broncos and Queensland this year. The game's best player with brilliant all-round abilities.
Canterbury, second row, aged 24, 8 caps
Awarded the Churchill Medal as the best player in the Grand Final. Represented Tonga in the 2000 World Cup but toured with the Kangaroos last November. A giant of the game.
Sydney Roosters, full-back or wing, aged 24, 6 caps
Former winger now rated behind only Darren Lockyer in the full-back stakes. Possesses awesome speed, strength and amazing ability to bounce off players.
Canterbury, prop, aged 23, 0 caps
Worked hard on his game to get to this level and will be a particularly proud debutant. A no-nonsense player who thrives on leading the charge up front.
Penrith, winger, aged 21, 1 cap
Powerful winger who has continued to develop his game after helping the Panthers to the 2003 title. A clinical finisher, who is safe under the high ball.
Canterbury, second row, aged 25, 1 cap
Assumed the captaincy for the Bulldogs' Grand Final win. An athletic second rower with a tremendous work ethic, Ryan is unfazed by pressure.
St George, prop, aged 25, 6 caps
Had a strong second half of the season after an extended injury lay-off and is back to the form which made him one of the game's most feared front rowers.
Tonga made his debut in the 16-16 draw against New Zealand
North Queensland, winger, aged 29, 7 caps
Was another star for the Cowboys during their run through the finals, scoring several spectacular tries from bombs. Has been a long-term star for Queensland.
Brisbane, centre, aged 22, 4 caps
Came back from a career-threatening injury to star for the Broncos and for Queensland. Another strong-running centre.
St George, centre or loose forward, aged 28, 5 caps
A surprise omission from the original squad and was on holiday in Bali when he received a belated call-up following the withdrawal of Michael Crocker with a neck injury.
Canterbury, centre, aged 21, 1 cap
Made an encouraging Test debut in Saturday's opening game in Auckland. Combines a tremendous step with a solid fend and good pace.
Brisbane, prop, aged 30, 15 caps
Still regarded as the best prop in the business, Webcke has been at the top of the game for seven years and shows few signs of slowing down. Runs hard with the ball.
Sydney Roosters, half-back or hooker, aged 24, 7 caps
Renowned for his darting runs from dummy-half. Can wreak havoc with his explosive speed and strength.