UNBREAKABLE.

A PRACTICAL WORKBOOK FOR AMATEUR AND PROFESSIONAL BOXERS

For the
moments
beforethe big moments.

UNBREAKABLE by Linn Sandstrom, ivory and gold book cover

This workbook isn’t about pretending you’ll always feel fearless and ready to go. You won’t. I don’t either. Being mentally strong doesn’t mean never feeling nervous, tired, doubtful or scared. It means knowing how to respond when those feelings show up. These pages give you simple routines, exercises and tools you can practise in training, shape with your coach, and use when the pressure is real.

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01 ON THE PAGE

UNBREAKABLE is the workbook
I wish I’d had when I started.

A glimpse inside the workbook

Worksheets to fill in, logs to use again and again, and the Fighter’s Code: short reminders for the big moments. Share the pages that matter with your coach, so your cue words and game plan match the work you’re actually doing.

“Being mentally strong doesn’t mean never feeling nervous, tired, doubtful or scared. It means knowing how to respond when those feelings show up.”
LINN SANDSTROM · P. 3
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02 PHYSICAL OR DIGITAL

Choose your
book type.

The book is available as both a physical book and digital PDF.

PREFER IT IN YOUR HANDS? GO PHYSICAL

Physical book

Put pen to paper. Give your routines, reflections and next steps a place to live, and somewhere to come back to.

  • BUILD · ENDURE · PERFORM
  • Room for your own words and plan
  • A workbook for the work between fights
PREFER IT ON SCREEN? GO DIGITAL

Digital PDF

Keep the workbook on your device. Type into the worksheets and logs, or print the pages you want to work on by hand.

  • 91 pages · 22 chapters
  • Fillable worksheets and six reusable logs
  • Print pages for personal use
03 THE COUNTDOWN

Every chapter guides you
closer to the bell.

Take one chapter at a time. Each one starts with a real boxing moment, gives you a simple tool, shares something from Linn’s own career, and finishes with a page for you to fill in.

  1. WEEKS OUT
    PART 01 · CHAPTERS 1–5

    BUILD

    Set your standards. Give training a purpose. Build confidence from the work you have actually done.

    Inside: a confidence bank for the days doubt gets loud
  2. THE HARD DAYS
    PART 02 · CHAPTERS 6–12

    ENDURE

    Find a clear response to hard sparring, setbacks, criticism and the moments that test your confidence.

    Inside: a pre-sparring routine and a difficult-session review
  3. FIGHT WEEK → THE BELL
    PART 03 · CHAPTERS 13–22

    PERFORM

    Bring your routines into camp, fight week and fight night, then learn from what comes after the bell.

    Inside: camp on paper, a kit checklist, a fight-day timeline and your own corner cues
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Got questions?

Who is it for?

I wrote it for fighters at any stage, amateur or professional. Take what works for you, practise it and make it your own. I don’t want you to finish this workbook thinking like me. I want you to finish it knowing how you think when things get hard, with your own words, your own routines, your own standards, your own plan for the moments when quitting would be easier than carrying on.

Do I need to read it in order?

No. Work through it a chapter at a time, or go straight to the situation you are facing now. The logs are made to be used again and again.

Can I fill in the PDF?

Yes. Type into the worksheets and logs with a PDF reader that supports form fields, or print pages for your own personal use.

Does it replace my coach?

No. It encourages you to shape your routines with your coach. It shares personal boxing experience and is not medical, psychological, nutritional or legal advice.