Matt Harvey’s fresh start took a leap forward Tuesday night, as the Fallen Knight picked up his first win in a Reds uniform.

The Mets’ fresh start guy, though? He has taken something closer to a jet-packed advancement. What if Harvey’s lasting Mets legacy is that he got the Mets a catcher?

Small-sample-size alert, unquestionably. Yet Devin Mesoraco, whom the Mets received from Cincinnati in return for Harvey, believes in the fresh-start narrative, too.

“Certainly. Absolutely,” Mesoraco said Tuesday, before the Mets lost to the Marlins at Citi Field. “In Cincinnati, I was not playing as much. I would say that you do get comfortable. It’s good to come out of your comfort zone and hear new voices and be around new people and have some more energy. I certainly do think that it was beneficial coming over here.”

Mesoraco, who pinch-hit Tuesday after not starting due to a left-elbow scare, will bring a .192/.323/.577 slash line into Wednesday night’s series finale with the Fish, and please ignore the batting average — as Aaron Boone does — and focus on the far more indicative on-base percentage and slugging percentage.

“I think I feel like, when he’s swinging the bat and he’s coming up to the plate, that anything can happen,” Mickey Callaway said. “That’s a good presence to have in the lineup.”

The reason for encouragement comes from the fact that Mesoraco, who turns 30 next month, can explain his uptick.

“I’ve had some good conversations with Pat,” he said, referring to Mets hitting coach Pat Roessler. “He watched a lot of video of me. Really I’ve had one good year, 2014. Pat watched some video from then and gave me some suggestions of how he thinks that we can get back to being close to that. I do feel good.”

The change, he explained, is in his batting stance. Said Mesoraco: “I was really bent over there for a while. That year, I was more upright. I had better posture at the plate. Those have been the two main things.”

Finally, it would have been journalistically irresponsible of The Post to not ask Mesoraco about his hometown of Punxsutawney, Pa., which is best known for holding the annual Groundhog Day event and consequently serving as the locale for the Bill Murray movie of the same name, although that was filmed not in Punxsutawney, but rather in Woodstock, Ill.

“I think I grew up half a mile from there,” he said, referring to Gobbler’s Knob. “My buddies would come over. We’d walk up [and watch].”

(As a side note, I asked Mesoraco if he grew up rooting for the Pirates, who played an hour and a half away. “The Pirates were terrible when I was growing up,” he said bluntly. “It was tough to be a fan. I watched whatever was on TV.”)

As for whether Punxsutawney folks resent that “Groundhog Day” filmed elsewhere, “I don’t know that they’re resentful,” Mesoraco said. “I think people are more happy. It’s something to be known for. It’s such a small town. There’s nothing else there. They do get excited about having some sort of recognition.”

If Mesoraco can continue to be a valuable addition for the Mets, if this fresh start sticks, he’ll be getting more recognition of his own.

– This week’s Pop Quiz question came from Gary Mintz of South Huntington: In a 2017 episode of “The Middle,” Mike admits he bet against Axl graduating college and compares himself to a baseball player known for betting. Name the player.

– The Pop Quiz answer is Pete Rose (duh).

If you have a tidbit that connects popular culture with baseball, please send it to me at kdavidoff@nypost.com.