SUNDAY: Edgin will undergo Tommy John surgery, Adam Rubin of ESPNNewYork.com tweets.

The Mets left the decision up to Edgin, but Rubin (link) doesn’t believe that this was the course of action that they preferred. The Mets, he says, wanted Edgin to give rehab a try for two or three weeks before making a determination. Mets GM Sandy Alderson told reporters (link) that the team was in accord with Edgin on having surgery. The pitcher felt that he rested all winter and a few weeks wouldn’t have made a difference in his condition.

THURSDAY: Mets southpaw reliever Josh Edgin is likely to start the season on the disabled list with a stretched elbow ligament, GM Sandy Alderson told reporters today, including Matt Ehalt of the Record (Twitter links). Rest and rehab is an option, but season-ending Tommy John surgery is on the table.

Regardless which way Edgin decides to proceed, the news has ramifications for a Mets club that was relying on him as its top left-handed option out of the pen. New York had already seemed a bit thin in that department, and will now be forced to turn for at least some portion of the season to options such as the more senior Scott Rice and younger players like Rule 5 pick Sean Gilmartin, Jack Leathersich, and Dario Alvarez.

Of course, it would not be surprising to see the Mets make a play to bolster that group. Joe Beimel and Phil Coke were snatched up only last week, taking away the best remaining options for immediate help. But other players surely will become available as roster battles and opt-out situations shake out, and there is always the possibility of a trade.

It is also a disappointing turn for the 28-year-old Edgin, who was excellent last year and is entering his arbitration platform season. He tossed 27 1/3 innings last season in 47 appearances, striking out 9.2 and walking only 2.0 batters per nine innings. ERA estimators support the underlying quality of his effort in 2014. While Edgin was limited to facing same-handed hitters as much as possible — he faced lefties as opposed to righties at nearly a 2:1 ratio — he actually posted even better numbers against right-handed hitters in a short sample and has rather palatable overall career splits.