Harris could be called up from Triple-A Las Vegas this week to join Oakland's rotation, Martin Gallegos of MLB.com reports.
Outside of a few brief stretches, Harris has had little success at both the big-league and Triple-A levels this season, but he looks poised to get another look in Oakland with yet another starter in Luis Medina (finger) going on the injured list Monday. The Athletics now have openings in the rotation for games Tuesday and Wednesday against the Royals, and Harris could be a candidate to start either of those days. Harris is well rested after having not pitched at Triple-A since Aug. 15.