The Rangers have promoted Mike Olt to Triple-A Round Rock. Olt was activated from the disabled list on Friday with the Rangers' Double-A affiliate after missing over a month due to vision issues. He'll look to get back on track now that he's finally healthy. Olt batted just .139 (10-for-72) with one home run and 32 strikeouts in 20 games at the Triple-A level earlier this season.