Sousa (oblique) will throw a live batting practice session next week, Brian McTaggart of MLB.com reports.
It will be his first time facing hitters since he suffered a Grade 1 left oblique strain in his final spring training appearance. He's eligible to be activated from the 15-day injured list next week and the Astros have been optimistic that Sousa won't need more than a minimum stay on the IL, so it's possible he skips a rehab assignment.