The Mets and deGrom, the reigning National League Cy Young Award winner, have been discussing a contract extension, but on Saturday, deGrom said he was becoming less optimistic that a deal could be reached by Opening Day. DeGrom is under club control this season and in 2020 and is scheduled to become a free agent in '21.
On Sunday, Syndergaard wondered publicly what the holdup is, with other ace pitchers such as Justin Verlander and Chris Sale signing extensions in recent days.
"Jake's the best pitcher in baseball right now. I think he deserves whatever amount he's worth. I want to keep him happy, so when it does come time for him to reach free agency, he stays on our side pitching for the Mets. I just think they should quit all this fuss and pay the man already," Syndergaard told reporters Sunday.
He said he was surprised that a deal hasn't been struck between deGrom and the team.
"If there wasn't a trend of other guys getting contract extensions, I don't know what the circumstance would be. But you can see Chris Sale, Verlander, those guys getting extensions. I think it's time Jacob gets one, too."
Syndergaard also questioned the Mets' travel itinerary before Opening Day, with no plans to stop in New York before Thursday's opener in Washington against the Nationals. The team will travel by bus for nearly three hours to Sarasota, Florida, on Sunday and then fly to Syracuse, New York, for a workout before heading to Washington.
"I don't know whose idea that was, but it's not a smart one," he said. "I don't think that's conducive for winning ballgames, really -- that much travel. I mean, I'm sure the amenities in Syracuse aren't the best for a Major League Baseball team to go up there and have one last workout before the regular season starts, but those kinds of decisions are above my pay grade."
Syndergaard said he has never been to Syracuse and isn't looking forward to the trip.
"Not even the slightest bit," he said.
Mets manager Mickey Callaway disagreed with Syndergaard, who will start the Mets' second game on Saturday in D.C.
"I've already talked to him about it before,'' Callaway said. "He's going to get mad when I take him out of a game because he's a competitor. He's a routine-oriented guy.
"I think going to Syracuse is good for the fans. It's a new affiliate and something that doesn't happen often. We're excited that it's New York, and it's our fans.''
The Associated Press contributed to this report.
Syndergaard: Mets should 'quit all this fuss' and pay deGrom
Noah Syndergaard will let Jacob deGrom's contract situation unfold the way it will but hopes the Cy Young winner remains a Met for the long term.