Blackburn underwent surgery Oct. 11 to repair a cerebrospinal fluid leak, Will Sammon of The Athletic reports.

Blackburn (back) was transferred to the 60-day injured list Saturday, per MLB's transaction log.

Mets manager Carlos Mendoza on Wednesday ruled out Blackburn (back) for the rest of the season, Tim Healey of Newsday reports.

Blackburn (back) will play catch Wednesday and hopes to return to the Mets as soon as the middle of next week, Anthony DiComo of MLB.com reports.

President of baseball operations David Stearns said Saturday that Blackburn has a spinal fluid leak in his back, Tim Britton of The Athletic reports.

Mets manager Carlos Mendoza said Tuesday that Blackburn (hand/back) isn't feeling much better and won't pitch against the Phillies this weekend, Tim Healey of Newsday reports.

Manager Carlos Mendoza said Monday that Blackburn (hand/back) was scratched from his start Monday against the Blue Jays due to a back issue, Tim Healey of Newsday reports.

Blackburn (hand) is no longer scheduled to start Monday's game in Toronto, Anthony DiComo of MLB.com reports.

Mets manager Carlos Mendoza confirmed that Blackburn (hand) will be activated from the 15-day injured list to start Monday in Toronto, Tyler Antonelle of MetsmerizedOnline.com reports.

Blackburn (hand) will rejoin the Mets' rotation early next week in Toronto, Anthony DiComo of MLB.com reports.