Australian rugby league fans have watched Anthony Seibold’s career take more twists than most. The same coach who once led the Manly Warringah Sea Eagles now finds himself in an off-field role at Collingwood — a cross-code pivot that few saw coming. From his playing days with the Canberra Raiders to his current consultancy work in the AFL, Seibold’s journey is a lesson in adaptability.
Born: 3 October 1974 ·
Nationality: Australian ·
Playing clubs: Canberra Raiders, Saint-Esteve ·
Coached teams: South Sydney Rabbitohs, Manly Warringah Sea Eagles ·
Current role: Development coach at Collingwood (AFL) ·
Education: Harvard Business School (short course)
Quick snapshot
- Born 3 October 1974 in Rockhampton, Australia (Manly Sea Eagles)
- Attended Harvard Business School for a short course (Sporting News)
- Played for Canberra Raiders in NRL (1997-1999) (Manly Sea Eagles)
- Played for Saint-Esteve in English Super League (2000) (Wikipedia)
- Head coach of South Sydney Rabbitohs (2019) (South Sydney Rabbitohs)
- Head coach of Manly Warringah Sea Eagles (2023-2025) (ABC News)
- Development coach at Collingwood (2026) (Sporting News)
- Married with children (Wikipedia)
Eight key facts, one pattern: Seibold’s career has spanned multiple codes, clubs, and continents.
The implication: Seibold’s career path shows a coach who has continually moved across codes and roles, rarely staying in one position long enough to build a legacy.
Here is the key biographical data for Anthony Seibold.
| Attribute | Detail |
|---|---|
| Full name | Anthony Seibold |
| Date of birth | 3 October 1974 (Manly Sea Eagles) |
| Birthplace | Rockhampton, Queensland, Australia (Manly Sea Eagles) |
| Nationality | Australian |
| Playing clubs | Canberra Raiders (NRL), Saint-Esteve (Super League) |
| Coached clubs | South Sydney Rabbitohs, Manly Warringah Sea Eagles |
| Current role | Development coach, Collingwood Football Club (AFL) (Sporting News) |
| Education | Harvard Business School executive program |
Did Anthony Seibold play NRL?
- Yes, Anthony Seibold played for the Canberra Raiders in the NRL from 1997 to 1999 (Manly Sea Eagles).
- He also played for Saint-Esteve in the English Super League in 2000 (Wikipedia).
Where did Anthony Seibold play rugby league?
Two clubs, two countries: Seibold played in Australia and England.
Here is the full breakdown of his playing clubs.
| Club | League | Years |
|---|---|---|
| Canberra Raiders | NRL | 1997-1999 |
| Saint-Esteve | English Super League | 2000 |
What this means: Seibold’s playing career, though brief, gave him firsthand experience of the NRL and overseas rugby — a foundation that later informed his coaching.
Which teams has Anthony Seibold coached?
- South Sydney Rabbitohs (2019) (South Sydney Rabbitohs)
- Brisbane Broncos (2019-2020) (Manly Sea Eagles)
- Manly Warringah Sea Eagles (2023-2025) (ABC News)
When did Anthony Seibold start coaching?
- He began his coaching career in the lower tiers, taking charge of the South Wales Scorpions and Mackay Cutters before stepping into the NRL (South Sydney Rabbitohs).
What is Anthony Seibold’s coaching record?
- Seibold won the Dally M Coach of the Year award in 2018 (Rugby League Project).
- At Manly, he was dismissed after three games of the 2026 season (ABC News).
The pattern: Seibold’s coaching career has been marked by early success (Dally M award) followed by short tenures at each NRL club, culminating in his dismissal from Manly in 2026.
What is Anthony Seibold doing now?
- Manly dismissed Seibold in March 2026 after three games of the season (ABC News).
- In May 2026, he joined Collingwood in a part-time development consultancy role (Sporting News).
- In July 2026, he was also appointed as an assistant coach for the PNG Chiefs ahead of the 2028 NRL season (ESPN).
Has Anthony Seibold resigned from Manly?
- No, he was sacked by the club after a winless start to the 2026 season (ABC News).
What is Anthony Seibold’s new role at Collingwood?
- At Collingwood, Seibold works alongside senior coach Craig McRae in an off-field development capacity, focusing on player growth and strategic planning (Sporting News).
Why this matters: Seibold’s cross-code move to the AFL and his upcoming role with the PNG Chiefs show a coach willing to reinvent himself, even after a high-profile NRL exit.
Did Anthony Seibold go to Harvard?
- Yes, Seibold attended Harvard Business School for an executive education program, but did not earn a full degree (Sporting News).
- The short course focused on leadership and management.
Does Anthony Seibold have a Harvard degree?
- No, he completed a short executive course, not a degree program.
What did Anthony Seibold study at Harvard?
- He attended a leadership development program at Harvard Business School.
The catch: While Seibold’s Harvard attendance is often highlighted, it was a short executive course, not a degree — a nuance that sometimes gets lost in media profiles.
A Harvard short course adds a credential, but it’s not a degree — a distinction that matters in coaching credibility debates.
What nationality is Anthony Seibold?
- Anthony Seibold is Australian, born in Rockhampton, Queensland (Manly Sea Eagles).
Where was Anthony Seibold born?
- Rockhampton, Queensland, Australia.
Is Anthony Seibold Australian?
- Yes.
What this means: Seibold’s identity is firmly rooted in Australian rugby league, despite his recent cross-code ventures.
Timeline: Anthony Seibold’s career milestones
Six milestones, one story: from Rockhampton to the NRL, and now to the AFL.
| Date | Event |
|---|---|
| 3 October 1974 | Born in Rockhampton, Australia (Manly Sea Eagles) |
| 1997-1999 | Played for Canberra Raiders in NRL |
| 2000 | Played for Saint-Esteve in English Super League |
| 2019 | Appointed head coach of South Sydney Rabbitohs (South Sydney Rabbitohs) |
| 2023-2025 | Head coach of Manly Warringah Sea Eagles |
| May 2026 | Joined Collingwood as development coach (Sporting News) |
The timeline underscores Seibold’s ability to navigate multiple codes and roles, but also highlights the brevity of his NRL head coaching tenures.
Confirmed facts and what remains unclear
Confirmed facts
- Played NRL for Canberra Raiders (Manly Sea Eagles)
- Coached South Sydney and Manly (South Sydney Rabbitohs)
- Joined Collingwood in 2026 (Sporting News)
- Attended Harvard Business School short course (Sporting News)
- Australian nationality (Manly Sea Eagles)
What’s unclear
- Exact salary figures
- Specific details of his marriage and children’s names
- Circumstances of his weight loss and voice change
Quotes on Anthony Seibold
Anthony Seibold is an Australian professional rugby league coach and former professional rugby league player.
— Wikipedia
Axed Manly coach Anthony Seibold takes up new role at Collingwood alongside Craig McRae.
— 7News (via Sporting News)
Anthony Seibold is an accomplished coach, former representative player, and educator.
Seibold’s dual roles at Collingwood and PNG Chiefs could set a precedent for cross-code coaching careers in Australian sport.
For Seibold, the next chapter is already written: he will help build the PNG Chiefs from scratch while also contributing to Collingwood’s development system. For Australian rugby league fans, his career serves as a reminder that coaching careers can take unexpected turns — and that adaptability often outweighs tenure.
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Frequently asked questions
Why did Anthony Seibold leave Manly?
He was sacked by Manly in March 2026 after a poor start to the season (ABC News).
What is Anthony Seibold’s net worth?
Exact figures are not publicly available. His salary as Manly coach was not disclosed.
Is Anthony Seibold married?
Yes, he is married, but his wife’s name is not widely reported (Wikipedia).
How many children does Anthony Seibold have?
He has children, but the exact number and names are private.
What happened to Anthony Seibold’s voice?
Seibold has a distinctive deep voice, but the cause has not been publicly explained.
How did Anthony Seibold lose weight?
He has undergone noticeable weight loss, but he has not detailed the method publicly.
What did Anthony Seibold study at Harvard?
He attended an executive education program at Harvard Business School, focusing on leadership (Sporting News).
Is Anthony Seibold still coaching in the NRL?
No, he is currently a development consultant at Collingwood (AFL) and an assistant coach for the PNG Chiefs (NRL expansion team) (ESPN).
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Catherine Roy is Editor-in-Chief at Oz Briefly, overseeing editorial standards, publication decisions and corrections.