Koji Uehara (hamstring) is scheduled to throw on flat ground Thursday, Brian MacPherson of the Providence Journal reports.

Uehara (hamstring) is scheduled to throw on flat ground Thursday, Brian MacPherson of the Providence Journal reports.

Analysis:

Uehara hopes to progress to a bullpen session by the weekend if all goes well Thursday. His performance in those workouts will likely paint a much clearer picture of the projected closer's Opening Day availability.