Anthony Seibold: Biography, Career, and 2026 Move to Collingwood
When a head coach is sacked just three games into a season, most expect a quiet exit — not a cross-code move to one of Australia’s biggest sporting clubs. Anthony Seibold’s departure from Manly in March 2026 and his arrival at Collingwood in the AFL weeks later has made him one of the most talked-about figures in Australian sport, with the 51-year-old Australian let go by Manly on 27 March 2026 after an 0-3 start, according to ABC News (Australian public broadcaster).
Nationality: Australian ·
Born: 3 October 1974, Rockhampton, Australia ·
Last coached: Manly Warringah Sea Eagles (NRL) ·
New role (2026): Collingwood (AFL) assistant coach
Quick snapshot
- Exact terms of his Collingwood contract.
- His current net worth or salary.
- Whether he still resides in Australia.
- Details of his personal family life.
- The specifics of his Harvard Business School executive program attendance.
- Part-time off-field development role at Collingwood for rest of 2026 AFL season (SEN (sports radio)).
- Uncertain future beyond 2026 — could return to NRL or stay in AFL. (SEN (sports radio))
Six facts, one pattern: Seibold’s career has been defined by mid-season changes and cross-code moves. For context on Collingwood’s recent player movements, see our article on Tim Membrey: The Skunk’s Journey from Saint to Magpie. The table below lays out the key biographical details.
| Label | Value |
|---|---|
| Full name | Anthony Seibold |
| Date of birth | 3 October 1974 |
| Nationality | Australian |
| Playing position | Prop / Lock |
| Coaching positions held | South Sydney Rabbitohs, Manly Sea Eagles, Collingwood (AFL) |
| Notable education | Harvard Business School executive program |
What nationality is Anthony Seibold?
Seibold is Australian, born in Rockhampton, Queensland on 3 October 1974. He has represented Australia as a professional rugby league coach and player, and no dual nationality has been reported. His entire career — from playing in Australia and Europe to coaching NRL and AFL clubs — has been rooted in Australian sport.
Seibold’s Australian identity is undisputed, but his path — crossing codes and continents — makes him an outlier among local coaches.
The implication: Nationality is not in question, but his career trajectory defies typical coaching biographies.
Did Anthony Seibold play NRL?
No — Seibold never played in the NRL. He played professionally for the Canberra Raiders in the NSWRL competition, the London Broncos in the Super League, and St. Esteve in France, according to Wikipedia (community-edited encyclopedia). His position was prop or lock. The common confusion stems from the fact that the NRL is now Australia’s top league, but Seibold’s playing days ended before the NRL era fully took over from the NSWRL and Super League.
- Canberra Raiders (NSWRL) — late 1990s
- London Broncos (Super League) — early 2000s
- St. Esteve (France) — early 2000s
The implication: Seibold’s rise to NRL head coach came entirely via his coaching credentials, not a high-profile playing career.
Did Anthony Seibold go to Harvard?
Yes — he attended an executive program at Harvard Business School, though not a full degree. The program focused on leadership and management, according to Wikipedia (community-edited encyclopedia). This credential has often been highlighted in media profiles as a differentiator for a rugby league coach.
In a sport where most coaches come from playing ranks, Seibold’s Harvard exposure signals a deliberate investment in strategic thinking — a trait he will now apply in the AFL environment.
The catch: While the Harvard credential is often cited, the details of the program remain unclear, and it is not a formal degree.
Will Manly sack Anthony Seibold?
That question was answered decisively on 27 March 2026. Manly Warringah Sea Eagles sacked Seibold after a meeting with club management, following an 0-3 start to the season. ABC News (Australian public broadcaster) reported that the decision came on the Friday after Round 3. Seibold himself told 7NEWS (commercial television network) that he “felt something was going to happen” after the loss to the Roosters. His Manly tenure spanned 77 games, including a finals appearance in 2024, according to ESPN (sports media).
The catch: Despite leading Manly to the finals in 2024 and winning six of their last 10 games in 2025, the disastrous 0-3 start proved fatal.
What is Anthony Seibold doing now?
As of May 2026, Seibold has joined Collingwood as an assistant coach in the AFL. His role is part-time, focusing on off-field development, according to SEN (sports radio). 7NEWS (commercial television network) reported that Seibold will work under head coach Craig McRae for the remainder of the 2026 AFL season. Seibold told ESPN (sports media) that he had been “down to Collingwood a couple of times” and would do “a small role there for the rest of the season.”
For Seibold, this is a chance to rebuild his reputation outside the NRL pressure cooker. For Collingwood, they gain a fresh tactical perspective — but the commitment is deliberately short-term.
What this means: The move is a low-risk experiment for both parties, with no long-term obligations beyond the 2026 season.
Timeline: Anthony Seibold’s career at a glance
- 3 October 1974 — Born in Rockhampton, Australia (Wikipedia)
- 1990s–2000s — Played for Canberra Raiders, London Broncos, St. Esteve (Wikipedia)
- 2019 — Head coach of South Sydney Rabbitohs (Wikipedia)
- November 2022 — Appointed head coach of Manly Sea Eagles (Wikipedia)
- March 2026 — Sacked by Manly after 0-3 start (ABC News)
- May 2026 — Joined Collingwood as assistant coach (7NEWS)
The pattern: Seibold’s career has been punctuated by swift transitions, from code to code and from head coach to assistant.
Clarity check: What we know vs. what’s uncertain
Confirmed facts
- Anthony Seibold is Australian.
- He was sacked by Manly in March 2026.
- He joined Collingwood as assistant coach.
- He played professional rugby league, but not in the NRL.
What’s unclear
- Exact terms of his Collingwood contract.
- His current net worth or salary.
- Whether he still resides in Australia.
- Details of his personal family life (wife, children).
- The specifics of his Harvard Business School executive program attendance.
- Whether he will return to the NRL beyond 2026.
The catch: The balance of verified facts versus unknowns highlights how much of Seibold’s story remains private or unresolved.
Voices from the codes
“I am excited to work with Craig McRae and contribute to a different code.”
— Anthony Seibold, via 7NEWS (May 2026)
“His leadership and tactical mind will bring fresh perspective.”
— Craig McRae, Collingwood head coach, via SEN (sports radio)
“We thank Anthony for his efforts and wish him well.”
— Manly club statement, via ABC News (March 2026)
For another AFL coaching perspective, read about Ken Hinkley: Children, Leaving Port, AFL Fine Explained.
Seibold’s cross-code gamble is unprecedented in recent Australian sport. For a coach who went from Harvard to head coach to sacked to AFL assistant in less than a decade, the next move will define his legacy. For Manly, the decision to cut ties after just three games signals a win-now culture. For Collingwood, the bet is that Seibold’s tactical brain can adapt to a new code without the pressure of being the headline name.
instagram.com, reddit.com, reddit.com, facebook.com, youtube.com, facebook.com, reddit.com
For a deeper look at the circumstances behind his departure from Manly, Anthony Seibolds sacking and new role offers a comprehensive account.
Frequently asked questions
How old is Anthony Seibold?
Born 3 October 1974 — 51 years old as of 2026.
Did Anthony Seibold play in the NRL?
No — he played in the NSWRL and Super League, but not the NRL.
Which teams has Anthony Seibold coached?
South Sydney Rabbitohs (2019), Manly Sea Eagles (2024–2026), and now Collingwood (AFL, 2026–).
Why was Anthony Seibold sacked from Manly?
The club cited poor performance after an 0-3 start to the 2026 season.
Where is Anthony Seibold now?
He is an assistant coach at Collingwood in the AFL for the remainder of the 2026 season.
What is Anthony Seibold’s salary?
Not publicly disclosed. The exact terms of his Collingwood contract remain unclear.
Does Anthony Seibold have a wife?
Family details are private and not widely reported.
More related posts
Jemima Goldsmith: Biography, Religion, Net Worth
Topgolf Gold Coast – Location Hours Booking Guide
Donna Hay: Biography, Age, Relationship, and Career
Comprehensive Car Insurance Compare – Best NSW Provider Guide
Serena Williams: Health, Family, Wealth, and Retirement Explained
Gary Ablett Jr: Net Worth, Career Stats, and Life Now
Anna Delvey: The True Story of the Fake Heiress
