Astros' Shawn Dubin: Getting back to mound work

Dubin (ankle/shoulder) will throw a bullpen session Wednesday and will resume his rehab assignment shortly thereafter, MLB.com reports.

Dubin has been dealing with a shoulder injury since spring training and hurt his ankle in the midst of a rehab assignment. He has yet to appear in a game at any level this season, so he may require several rehab appearances before being activated.