Astros optioned RHP Miguel Ullola to Triple-A Sugar Land.

Ullola made his MLB debut against the Twins on Monday, racking up four strikeouts over two scoreless innings. He then followed that up with three strikeouts over two perfect frames in the series finale on Wednesday. The only logical reason for the demotion would be to keep him stretched out as a starter at the Triple-A level until he’s needed in the same role with the Astros.