He made $1.2 million in the NFL and still had to rebuild from scratch. In this episode of Sell Anything, former NFL tight end and Supra Human founder John Madsen breaks down what actually changed between being an undrafted athlete fighting for a roster spot and building a $50M fitness brand.
John shares the lessons from opening struggling gyms, training clients in freezing warehouses, investing heavily in mentors, mastering marketing, and eliminating the fear of judgment that silently keeps high performers playing small. If you care about fitness, leadership, business growth, and building a body and brand that reflects your standards, this conversation shows how physical discipline and mental clarity compound over time.
Chapters
(00:00) Introduction
(08:45) The Identity Shift After Football
(15:30) Building the First Gym and Learning the Hard Way
(23:40) Handling Hate and Public Criticism
(31:15) The Mindset Behind Building a Fitness Empire
(39:50) Marketing, Self-Image, and Selling Without Fear
(48:20) Faith, Discipline, and Long-Term Winning
(56:10) Final Advice for High Performers
What’s one area of your life where you’ve been negotiating instead of doing what it takes? Drop your answer in the comments
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