DETROIT — Michael Fulmer has never thrown a pitch for the Mets, but his place in team history is assured.

The then-minor league righthander was the player the Mets traded in July 2015 for Yoenis Cespedes. Without Cespedes, the Mets would not have reached the World Series.

Now Fulmer, the Mets’ first-round pick in 2011, has become a star in Detroit. The 23-year-old, who will not face the Mets in this weekend series, is 9-2 with a 2.42 ERA in 17 starts for the Tigers.

“I talked to [Tigers adviser] Jim Leyland the other day,” Terry Collins said. “He wanted to know if we had any more Fulmers we wanted to trade. I told him I wasn’t sure, but I wanted to know if they had any more Cespedeses they wanted to trade.”

Conforto sits

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Even with the need for a designated hitter, Michael Conforto could not crack the lineup against Justin Verlander. Curtis Granderson was the DH with Brandon Nimmo in left, Alejandro De Aza in center and Jay Bruce in right.

“I still think he’s really, really pressing a little bit,” Collins said of Conforto, who is batting .221. “He’s really trying to make a contribution. I wouldn’t necessarily say he’s trying to hit home runs, but I think it’s certainly on his mind to do some damage when he’s up there.”

Terry’s town

Collins, who is from Midland, Michigan, and went to Tigers games as a kid, expects to have about 110 family members and friends at Saturday’s game. “Another busload on Sunday, too,” Collins said.

Keith’s town, too

Mets videos

Keith Hernandez, in his first visit to Comerica to call this weekend’s games on SNY, believes he now has been to all 30 current major-league ballparks. His view of Comerica?

“I like it,” he said. “I like the old-time feel.”