Jacob deGrom said his shoulder feels better and he does not expect to miss more than two starts after being placed on the 15-day disabled list Monday with right rotator cuff tendinitis.

"I already feel a lot better with just the couple days' rest that I had," deGrom said before Tuesday night's game. "It's good to know it's nothing serious, which I didn't think it was to begin with."

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DeGrom will continue to rest and take anti-inflammatory medication. Mets manager Terry Collins said deGrom will start throwing again "most likely in the next five or six days." It's an encouraging development for the rookie righthander because rotator-cuff injuries are considered very serious for pitchers.

General manager Sandy Alderson said he was "fairly confident" deGrom would not need to miss more than two starts. Because of an innings limit this season, deGrom was expected to be shut down at some point. Alderson said the decision to put deGrom on the disabled list, rather than having him miss only one start, enables him to finish the season.

"We could have just skipped him once and brought him back," Alderson said. "We felt this was a better approach."

DeGrom, 26, is 6-5 with a 2.87 ERA.

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Said deGrom, "I feel like I should have no trouble finishing the season strong."