The Mets haven’t sold anything yet, but that hasn’t changed the organization’s mindset heading to the July 31 non-waiver trade deadline.

They are still sellers.

Before the Mets opened the Subway Series on Friday, assistant general manager John Ricco — who is guiding the organization with special assistants Omar Minaya and J.P. Ricciardi following GM Sandy Alderson’s medical leave of absence last month — said interest in his players has been robust.

While staying on his previous message that it would be difficult to trade Jacob deGrom or Noah Syndergaard, both of whom are considered cornerstones for 2019 and beyond, Ricco did not downplay the idea Zack Wheeler could be dealt in this thin market for starting pitching.

Over the past seven weeks, the 28-year-old Wheeler has emerged as a reliable middle-of-the-rotation type, working deep into games and pitching to a 3.61 ERA for his best extended stretch since undergoing Tommy John surgery in 2015.

“This is the pitcher we always hoped we would have, the guy who goes out there and gives you seven innings of dominant stuff, still throwing 98 in the sixth and seventh inning,” Ricco said. “While it increases the value to other teams, it certainly increases the value to us and makes us think about what his role would be moving forward.

“But at the same time we’re looking to improve this team and if there’s an asset we think we can turn into something that benefits the team more so then I think we have to explore it.”

Wheeler is under club control through 2019, only adding to his value over a two-month rental. Ricco was asked how Wheeler’s trade value has changed over the past six weeks.

“We really didn’t have him out there as a trade piece prior so I can’t tell you how it’s changed, but he has really settled in as a reliable starter,” Ricco said. “He is starting to show the consistency to go along with the high level of talent that he had and it’s really a credit to Mickey [Callaway] and [pitching coach] Dave [Eiland] to have him where he is, so that kind of pitcher is valuable.”

The Mets’ top horses, deGrom and Syndergaard, are available if a team is willing to surrender a haul in prospects.

“I don’t think that is likely,” Ricco said of such a trade. “[But] we still have a few weeks to go and we’ll see. We are looking at all ways to make this club better.”

Last summer, a Mets team long removed from playoff contention unloaded Lucas Duda, Addison Reed, Jay Bruce, Neil Walker and Curtis Granderson — all of whom had expiring contracts — for seven minor-league relievers. The Mets avoided picking up much remaining salary in the trades, decreasing their yield in return.

But Ricco indicated the organization would be willing to eat remaining salary this year in an effort to improve the return. Asdrubal Cabrera and Jeurys Familia are the players with expiring contracts who are most likely to be dealt.

“We ended up not [eating salary] last year and we are looking to maximize value coming back,” Ricco said. “We have the ability to carry some of the money in order to increase the return. It doesn’t mean we’re going to do that.

“We are still going to look at the totality of the deal and if it means moving the money plus talent is better than what we’re going to get for eating the money you might see us doing deals where we do move all the money.”