Unstitched: How to throw a two-seam fastball

Unstitched: How to throw a two-seam fastball

Unstitched: How to throw a two-seam fastball

Potomac Nationals pitcher Austen Williams demonstrates how to throw a two-seam fastball.

User: The Washington Post

Views: 61

Uploaded: 2016-06-29

Duration: 01:13