Leclerc was optioned to Triple-A Round Rock on Saturday, Jeff Wilson of the Fort Worth Star-Telegram reports.
Leclerc will head back to Triple-A ball with Yu Darvish getting activated off the 15-day DL. Leclerc struggled with command during his first stint in the majors, allowing eight walks in 5.2 innings, but he allowed only one earned run during his three appearances (1.59 ERA).