The Mental Trick That Made Sean Casey an MLB All-Star

What separates good athletes from elite performers? It’s not just talent—it’s mental discipline. In this episode of Most Valuable Agent, Sean Casey, former MLB All-Star and performance coach, breaks down the mental game of baseball and how mastering your mindset can transform your performance on and off the field.

Sean shares how Harvey Dorfman’s book, The Mental Game of Baseball, completely changed his approach to the game, giving him a sixth tool—the ability to stay calm, focused, and confident under pressure. He reveals how mental toughness helped him go from being overlooked in high school to becoming one of the best hitters in the country.

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What You’ll Learn from This Episode:

✔️ Why 80-90% of baseball is mental—but few players train their mindset
✔️ How Sean Casey used visualization & breathing techniques to stay locked in at the plate
✔️ Lessons from Ken Griffey Sr. & the legends of the game that shaped his career
✔️ Why players fail at showcases—and how to dominate at game time
✔️ The power of self-belief & outworking the competition

Unlock the Mental Edge to Dominate in Baseball & Life!

Sean Casey isn’t just talking theory—he lived it. If you’re an athlete, coach, or competitor looking for an edge, this is the episode to watch.

📌 Check out Sean’s 8 Week mental performance program: https://www.seancaseylive.com/breakthroughpro

Subscribe to Most Valuable Agent Youtube Channel for more content

https://www.youtube.com/@mostvaluableagent/

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RESOURCES + LINKS

ALIGND Sports: Elite Representation. Strategic Growth. Maximum Impact.

From contract negotiations to career development, we put athletes first—helping you secure your future on and off the field.

Ready to take your career to the next level? Book a 1:1 consultation with Matt HERE.

FOLLOW

Sean Casey: @themayorsofficemlb

Matt Hannaford: @mfhannaford