The other day, Mariners top pitching prospect Bryce Miller made his MLB debut in Oakland against the A's and set a Mariners franchise record. Also, his fastball was regarded as being arguably the best in all of the minor leagues before he was called up- turns out it may be one of the best in MLB as well.

From 5/5/23- https://youtube.com/live/BbZcQsiIM4U

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