Langeliers (oblique) will begin a minor-league rehab assignment with Triple-A Las Vegas on Wednesday, Martin Gallegos of MLB.com reports.
Langeliers has been on the shelf since June 6 while recovering from a left oblique strain, but he appears to be on the cusp of a return to action. The catcher will likely require at least a couple of rehab games to regain his timing at the plate, but once activated from the 10-day injured list, he should reclaim his usual duties as the Athletics' No. 1 backstop. Austin Wynns and Willie MacIver have been splitting playing time at the position since Langeliers was deactivated.