The Mets have requested unconditional release waivers on right-hander Paul Blackburn, according to Mike Puma of The New York Post. Blackburn was designated for assignment on Saturday when the Mets called up Nolan McLean.
A release was a likely outcome once Blackburn was bumped from the 40-man roster. With the deadline having passed, a trade was not a possibility. The Mets could have opted for outright waivers but Blackburn has five-plus years of service time, meaning he has the right to reject a