
The Line with Dr Kristen Holmes We Almost Quit in 2022! Aryna Sabalenka’s Coach on the Journey to Be World’s #1 Tennis Player
Dec 4, 2025
Jason Stacy, a high-performance coach renowned for guiding Aryna Sabalenka to the top of tennis, shares his inspiring journey from a challenging childhood to elite coaching. He discusses the vital role of emotional regulation in sports and how it can be harnessed for success. Jason emphasizes the importance of making training fun and unique, while also revealing insights from Aryna’s toughest moments. Learn how shifting mindsets from 'fighting' to 'winning' transformed her game, alongside practical tips for athletes and coaches alike to achieve peak performance.
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From Homeless Teen To Coach
- Jason Stacy described being homeless as a teen and finding martial arts which saved him and launched his coaching path.
- He used those early lessons to build empathy and practical frameworks he applies with elite athletes now.
Three Pillars Built The Puzzle
- Jason focused on three puzzle pieces for Aryna: environment, physical/technical, and emotional awareness.
- He prioritised athlete wellbeing first to build sustainable elite performance.
Create Psychological Safety First
- Build loyalty and consistency in your team to earn trust and psychological safety.
- Use that trust to allow vulnerability, experimentation, and resilience under pressure.

