<p>This week on The 90th Percentile Geoff Pontes sits down with Sean McGrath current Double-A Pitching Coach of the Seattle Mariners. We discuss Sean's beginnings as a collegiate pitching coach, his time at Elon University and his time with Seattle. Later in the episode we dive into velocity training and how Seattle has helped their minor league pitchers develop.</p>

This week on The 90th Percentile Geoff Pontes sits down with Sean McGrath current Double-A Pitching Coach of the Seattle Mariners. We discuss Sean's beginnings as a collegiate pitching coach, his time at Elon University and his time with Seattle. Later in the episode we dive into velocity training and how Seattle has helped their minor league pitchers develop.

Episode 3: Sean McGrath Seattle Mariners Double-A Pitching Coach

<p>90th Percentile is a podcast from Baseball America focused on the rapidly evolving world of player development. Each episode your host Geoff Pontes speaks with a new personality within the game making an impact on player training, development, and methodology. A unique interview style look into how prospects develop into big leaguers.</p>

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90th Percentile is a podcast from Baseball America focused on the rapidly evolving world of player development. Each episode your host Geoff Pontes speaks with a new personality within the game making an impact on player training, development, and methodology. A unique interview style look into how prospects develop into big leaguers.

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Episode 3: Sean McGrath Seattle Mariners Double-A Pitching Coach

Episode 3: Sean McGrath Seattle Mariners Double-A Pitching Coach