Mariners' Richie Shaffer: Designated for assignment

Shaffer was designated for assignment by the Mariners on Wednesday.

A spot was needed for Chris Heston and Shaffer, whom the Mariners acquired via trade less than three weeks ago, was the roster casualty. He will now be subjected to waivers. A first-round pick back in 2012, Shaffer has posted a .783 OPS in two seasons at Triple-A but he's hit just .213 in 51 games at the highest level. Still, Shaffer is just 25 and may draw interest from a rebuilding club looking to take a flier.