Apostel (undisclosed) has gone 1-for-11 over three games with Double-A Frisco since the affiliate reinstated him from its 7-day injured list July 28.
Apostel was out of action for about three weeks with the unspecified injury before he began a week-long rehab assignment in the rookie-level Arizona Complex League on July 20. The 22-year-old is expected to settle into an everyday role at first or third base for Frisco now that he's healthy again, and his presence on Texas' 40-man roster could keep him in the mix for a call-up to the big club in September.