PLAYER SNAPSHOT: At a Glance
| Category | Details |
|---|---|
| Full Name | Kai Clifton Trewin |
| Date of Birth | 18/05/2001 (Age: 25) |
| Place of Birth | Batemans Bay, Australia |
| Nationality | Australian |
| Height | 1.83 m / 6 ft 0 in |
| Weight | 73 kg / 161 lb |
| Position | Centre-Back / Defensive Midfielder |
| Preferred Foot | — |
| Squad Number | #5 (NYCFC) |
| Current Club | New York City FC |
| Previous Clubs | Brisbane Roar, Melbourne City FC |
| International Caps | 7 |
| International Goals | 0 |
| World Cup Appearances | 2026 (Squad member) |
| Contract Until | 2029 |
The Frozen Moment
The text message must have come as a surprise. Kai Trewin, the 24-year-old defender who had been plying his trade in Australia just months earlier, had been named in Tony Popovic’s 26-man squad for the 2026 World Cup. It was the culmination of a remarkable rise that had seen him go from Brisbane Roar to Melbourne City to New York City FC in the space of two years.
Just weeks earlier, he had been preparing for the MLS season with his new club, adjusting to life in the United States. Now, he was preparing to represent his country on the biggest stage of all. It was a moment he described as “exciting,” the realization of a dream that had seemed distant just a year before.
His journey had been one of steady progression. From the youth ranks at Brisbane Roar to earning the Scott Jamieson Medal as Melbourne City’s Player of the Year, Trewin had proved himself at every level. His versatility — capable of playing as a centre-back or defensive midfielder — had made him a valuable asset. His performances had earned him his first Socceroos caps in November 2025, and now he was heading to a World Cup.
Origins: The Batemans Bay Boy
Kai Clifton Trewin was born on May 18, 2001, in Batemans Bay, a coastal town in New South Wales, Australia. His football journey began in the youth ranks, with early stints at Gungahlin United FC and the FFA Centre of Excellence.
He joined Brisbane Roar’s youth system in 2018 and made his A-League debut for the club on March 6, 2020, coming on as a late substitute against Western Sydney Wanderers. His development through the Roar youth setup was steady, and by the 2021-22 season, he had become a regular starter.
His international pedigree was established early. He represented Australia at the U-20 level, earning 8 caps and scoring 2 goals, and later at the U-23 level, with 7 appearances. His talent was evident from a young age.
The European Forge: A-League to MLS
Brisbane Roar (2020-2024)
Trewin’s time at Brisbane Roar was foundational. He made 105 A-League appearances for the club, scoring one goal and providing two assists over four seasons. He logged over 8,600 minutes of football, becoming a mainstay in the Roar defence.
Melbourne City FC (2024-2026)
In May 2024, Trewin signed for Melbourne City FC on a permanent transfer. His debut season was a success: he was named the club’s Player of the Year, winning the Scott Jamieson Medal, and also received the Players’ Player Award. He played a key role in Melbourne City’s 2024-25 Grand Final victory. Across his 18 months at the club, he made 47 appearances and scored three goals.
New York City FC (2026-Present)
On January 26, 2026, Trewin made the move to Major League Soccer, signing for New York City FC through the 2028-29 season, with an option for 2029-30. The move was a significant step in his career, taking him from the A-League to one of the biggest leagues in North America.
In his first season with NYCFC, Trewin has made 18 appearances across all competitions, recording two assists and scoring his first goal for the club in the Lamar Hunt U.S. Open Cup Round of 16. He has shown his versatility, playing in both defence and midfield.
The Anatomy of His Game
Trewin is a versatile defender who can operate as a centre-back or in a holding midfield role. His game is defined by his reading of the game, composure on the ball, and physicality.
In Possession
Trewin is comfortable on the ball, a trait praised by New York City FC sporting director Todd Dunivant: “Kai is comfortable on the ball and reads the game well.” He has contributed assists at club level, with two assists across his first season at NYCFC.
Out of Possession
His defensive contribution is his greatest asset. He has won 49 ground duels and 21 aerial duels in his MLS appearances, making 45 clearances. He has been a consistent presence in the NYCFC defence, starting 14 of his 15 MLS appearances.
His Versatility
Trewin’s ability to play in multiple positions is his defining characteristic. He can play as a centre-back or defensive midfielder, making him a valuable tactical asset for both club and country. Sporting Director Todd Dunivant said: “Kai brings versatility to our group and solidifies himself as a defender and in the midfield.”
His Weakness
His discipline has been an area of development: he has received 3 yellow cards in his MLS appearances. His attacking output is also limited, with one career goal in A-League and one in US Open Cup.
The Numbers Game
TABLE A: The Data Snapshot (2026 MLS Season)
| Competition | Apps | Minutes | Goals | Assists | Rating |
|---|---|---|---|---|---|
| MLS | 15 | 1,257 | 0 | 0 | — |
| U.S. Open Cup | 3 | 267 | 1 | 0 | — |
| World Cup | 0 | 0 | 0 | 0 | — |
| Total | 18 | 1,524 | 1 | 0 | — |
TABLE B: Career Overview
| Club | Period | League Apps | Goals |
|---|---|---|---|
| Brisbane Roar | 2020-2024 | 105 | 1 |
| Melbourne City FC | 2024-2026 | 28+ | 3 |
| New York City FC | 2026-Present | 15 | 0 |
| Total | — | 162+ | 4 |
TABLE C: International Record (as of 2026)
| Category | Total |
|---|---|
| Senior Caps | 7 |
| Senior Goals | 0 |
| Debut | November 2025 |
| World Cup Appearances | 2026 (Squad member) |
| U-20 Caps | 8 |
| U-23 Caps | 7 |
TABLE D: Career Milestones
| Year | Achievement | Details |
|---|---|---|
| 2020 | A-League Debut | Brisbane Roar vs Western Sydney Wanderers |
| 2024-25 | A-League Championship Winner | Melbourne City Grand Final victory |
| 2024-25 | Melbourne City Player of the Year | Scott Jamieson Medal |
| 2025 | Socceroos Debut | Friendlies vs Venezuela and Colombia |
| 2026 | NYCFC Move | Signed from Melbourne City |
| 2026 | World Cup Selection | Named in Australia’s 26-man squad |
What These Figures Reveal
The statistics paint a portrait of a player who has steadily improved throughout his career. Trewin has made over 160 professional appearances across the A-League and MLS, contributing goals and assists from defence. His move to NYCFC represented a significant step up, and he has quickly adapted to the demands of Major League Soccer.
His international career is still in its infancy. He made his debut in November 2025 and earned his first World Cup call-up just months later. His 7 caps and his selection for the 2026 World Cup demonstrate his rapid integration into the Socceroos setup.
The Present Tense
The 2026 World Cup was the culmination of Trewin’s rise. He was named in Tony Popovic’s 26-man squad for the tournament, one of two NYCFC players selected alongside Aiden O’Neill. His selection was a reward for his consistent performances at Melbourne City and his successful transition to MLS.
His club future is secure. He is under contract at New York City FC until 2029 and has become a key player for the club. His versatility and work ethic have made him a fan favourite.
His international career is just beginning. He has 7 caps for Australia and is expected to be a key player for the Socceroos in the coming years.
Beyond the Touchline
Off the pitch, Trewin is known for his professionalism and his commitment to his country. He has spoken about the importance of his family’s support in his career.
His journey from Batemans Bay to the World Cup is a testament to his hard work. His move to NYCFC was driven by his ambition to test himself at the highest level, and he has quickly proven that he belongs.
His relationship with his NYCFC teammate Aiden O'Neill is a key part of his story. The two Australians have linked up at club level and are now representing their country together at the World Cup.
The Verdict from the Camp
Tony Popovic, Australia head coach:
Named Trewin in Australia’s 26-man squad for the 2026 World Cup.
Todd Dunivant, NYCFC Sporting Director:
“Kai brings versatility to our group and solidifies himself as a defender and in the midfield. Kai is comfortable on the ball and reads the game well.”
Kai Trewin, on his NYCFC move:
“I’m excited to join New York City FC and take this next step in my career. I’m grateful for my time at Melbourne City FC and for the opportunity to come to a Club with high standards and clear ambitions.”
Where Next?
Kai Trewin is 25 years old and at a crucial stage in his career. He has made the leap from the A-League to MLS, earned his first Socceroos caps, and secured a place at the World Cup.
Club Outlook
He is under contract at NYCFC until 2029 and is a key player for the club. His versatility makes him a valuable asset, and his performances in MLS will determine his future trajectory. He has the potential to become a mainstay in the NYCFC defence.
International Outlook
For Australia, he is a rising star. His World Cup experience, even in a limited role, will be invaluable. At 25, he has many years ahead of him and could become a key player for the Socceroos in the coming years.
The Journey Continues
From Batemans Bay to the World Cup, from the A-League to MLS, Kai Trewin’s journey is a story of talent, ambition, and extraordinary achievement. The boy who made his debut at Brisbane Roar is now a World Cup player and an MLS regular. His career trajectory suggests that, at just 25 years old, the best is yet to come.
