Diaz (oblique) could be reinstated from the injured list during the Astros' upcoming series versus Detroit, which begins Monday, Brian McTaggart of MLB.com reports.
Diaz has been sidelined since early May due to a left oblique strain. He began a minor-league rehab assignment June 9 and has gone 2-for-11 with a walk through three games with Triple-A Sugar Land. Diaz figures to reclaim his job as Houston's No. 1 catcher upon his return, though his .602 OPS through 26 games this year may leave the door open for the defensively superior Christian Vazquez to force a timeshare.