Martha MacCallum, host of The Story on the FOX News Channel, sits down with a major news maker each week to get their "Untold Story." Martha's guests share inspiring stories of perseverance, positivity and more.

This week, Martha sat down with former NFL Quarterback and current professional baseball outfielder, Tim Tebow, to discuss his untold story of struggling with dyslexia, the change from football to baseball and his relationship with Aaron Hernandez.

Follow Martha on Twitter: @marthamaccallum