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Heads up baseball 2.0. Di Ken Ravizza, Tom Hanson
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Dr Ravizza, author of “HeadsUp Baseball 2.0”. MUST READ
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The Mental Game of Baseball: A Guide to Peak Performance: Dorfman
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Heads-up Baseball 2.0: 5 Skills for Competing One Pitch at a Time [Book]
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Heads-Up Baseball
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Cubs consultant Ken Ravizza dies at 70; sports psychologist hired
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The Mental Game of Baseball: A Guide to Peak
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Dr. Tom Hanson Hitting Summit
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Monthly Coaching Program
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Heads-Up Baseball