There was a bit of movin' and shakin' going on in the minor leagues today on the roster front.

Here's the latest and greatest (sort of) news from the farm systems:

• Boston's Nate Spears clears waivers | Twitter @PeteAbe
  Red Sox infielder Nate Spears cleared waivers and was outrighted to Boston's Triple-A affiliate in Pawtucket.
• Jarrod Parker recalled by A's, De Los Santos optioned | Twitter @Athletics
  Athletics recall Jarrod Parker and select Jim Miller; Fautino De Los Santos optioned to Sacramento; Rich Thompson designated for assignment.
• Royals release Eric Cantrell | Twitter @eddymk
  Royals release righty Eric Cantrell (7th round pick, ’10) after he allows 13 baserunners through 4 1/3 for Low-A Kane County this year. He holds a career 5.43 ERA.

• Orioles release several minor league pitchers | Twitter @eddymk
  The Orioles release a quartet of veteran minor league arms: southpaws Chris George & Ryan Edell & right-handers Wynn Pelzer and Ross Wolf.