Blackburn (back) threw one inning of live batting practice Tuesday, Andrew Tredinnick of NorthJersey.com reports.

EDGE Analysis

Blackburn worked with the Mets this offseason to refine his sinker and sweeper with the goal of adding more run to his sinker and more horizontal movement to his sweeper to make it less of a slurve. He got off to a rough start with the Mets after getting traded from the A's last season, including a hand contusion and a spinal fluid leak in mid-September that ended his season. He had surgery Oct. 11 that came with a three-to-five month estimated recovery, and we'll be at five months in mid-March. Blackburn is understandably a little behind the likes of Tylor Megill, who is reportedly furthest along of Blackburn and Griffin Canning, all of whom are competing for the final two spots in the Mets' six-man rotation.