Okert (hamstring) threw a bullpen session Monday and could be included on the Astros' wild-card series roster against the White Sox, Brian McTaggart of MLB.com reports.
Okert has been shelved since early September with a right hamstring strain, but it sounds like the Astros could get one of their better relievers back in time for the playoffs. The left-hander has logged a 2.13 ERA, 0.87 WHIP and 68:14 K:BB over 67.2 innings this season.