Gray (elbow) will throw a bullpen session Thursday, Thomas Harding of MLB.com reports.
Gray was hopeful that his next throwing session would be a simulated game, but he said that he needs to work on the timing of his delivery before he faces hitters. However, the right-hander said that he feels healthy, and it's encouraging that he'll be able to resume mound work Thursday. A timetable for his return to the major-league rotation isn't yet clear.