Blackburn (hand) will rejoin the Mets' rotation early next week in Toronto, Anthony DiComo of MLB.com reports.
The exact date of his return is uncertain, but Blackburn has been cleared to make his next start in the majors after tossing 6.2 innings of one-run ball in a rehab outing with Triple-A Syracuse on Tuesday. He's been out since late August with a right hand contusion.