Friday, Dec. 1 is the deadline for teams to offer contracts for 2018 to their arbitration-eligible and pre-arbitration players.
Any player who is not tendered a contract will become a free agent.
Jeurys Familia, Matt Harvey, Jacob deGrom, Wilmer Flores, Travis d'Arnaud, Zack Wheeler, Noah Syndergaard, and Hansel Robles are all eligible for arbitration.
The Mets are expected to tender contracts to all of the above players, with the only uncertainty surrounding Harvey. However, GM Sandy Alderson has said multiple times that he expects Harvey to be retained for 2018.
"At this moment, I favor the idea of him being back," Alderson said in late-September, adding that Harvey was making progress despite the results.
"I do think in this circusmstance, it's obscuring to some extent the progress that he's making," Alderson noted about outside expectations.
The 28-year-old Harvey, who is eligible for free agency after next season, had a 6.70 ERA and 1.69 WHIP with just 67 strikeouts in 97 2/3 innings this past season as he returned from Thoracic Outlet surgery. He also dealt with an injury to his scapula that kept him out of action from June 15 to Sept. 2.
"This is about command and command does relate to conditioning and strength," Harvey's agent, Scott Boras, said last month about Harvey's struggles in 2017. "What Matt went through with the TOS (thoracic outlet syndrome), he did not have the type of conditioning last offseason you do when you have normal health. He will have that chance this offseason."
Boras added that Harvey is "committed to getting his abilities to a place they were before," and that he is "fighting for something he really wants."
Harvey is expected to earn $5.85 million through arbitration, according to a projection from Pace University Law School.