MIAMI — For at least the fourth time since reporting discomfort in his left shoulder in mid-August, Mets left-hander Steven Matz visited a doctor in Manhattan on Monday for a checkup. Though Mets staff members in Miami did not know details of his visit as of Monday afternoon, they did indicate that Matz’s stalled progress means he almost certainly will not return this season.

Because Matz has not pitched since Aug. 14, he will not be a consideration for the Mets’ postseason rotation. Even if Matz does feel healthy enough to throw off a mound in the coming weeks, manager Terry Collins said it is unlikely he would contribute out of the bullpen, either.

“I don’t think it’s fair to him or us to do that,” Collins said.

Barring a sudden return to health, Matz will wrap up his rookie season with a 9-8 record and a 3.40 ERA in 22 starts. It has been a difficult campaign for Matz, who endured left elbow soreness early in the year and a shoulder impingement in August. Though there is still a slim chance Matz could pitch in instructional league games early in October and return to the Mets later that month as a reliever, Collins noted that “we’re running out of days.”

“If he pitches in some games in St. Lucie, [Fla.], and shows that he’s got the command of his stuff, and it’s legitimate, that his stuff’s where it should be, then you’ve got to think about it,” Collins said. “But that’s down the road.”

More than likely, the Mets will proceed into October without Matz, Matt Harvey and Jacob deGrom. The latter two pitchers have already undergone season-ending surgery, and whenever Matz’s season officially ends, he will also head to the operating table to remove a bone spur from his left elbow. The spur and the shoulder impingement are unrelated injuries.

Anthony DiComo has covered the Mets for since 2008. Follow him on Twitter @AnthonyDiComo and Facebook, and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.

Source: Mets News / Matz sees doctor; season most likely over