The Unlikely Caddie: Former Math Teacher Michael Greller of Gig Harbor

This time three years ago, Gig Harbor's Michael Greller was wrapping up another school year, as a sixth grade math teacher at Narrows View Intermediate School in University Place. Now, he's the full-time caddie for Masters Champion Jordan Spieth.

His journey is as improbable as the sand-and-gravel-mine-turned-golf-course that's hosting its first-ever U.S. Open, Chambers Bay. And he's another reason to root for Spieth when the U.S. Open begins on June 18 on Q13 Fox.

His story in the video above, by Q13 Fox Sports Director Aaron Levine.