While Jaguars long snapper Matt Overton likely has Sunday, Sept. 8 circled on his calendar, when Jacksonville opens the NFL season against the Kansas City Chiefs, you can bet he’s also counting down to a special date in 2020.

After announcing his engagement to former Colts cheerleader Breanna Fonner in April, Overton, 33, who first crossed paths with his future bride while playing for Indianapolis from 2012 to 2017, added another task to his offseason regimen: wedding planning.

“We’ve done quite a bit. We quickly got our venue and we’re getting married in the Indianapolis area,” Overton told The Post by phone on Monday. “We have the help of her mom, and family, and my mom as well.”

Though Fonner has done a lot on her own as Overton was in Jacksonville for OTAs, he understands the “stressful” process that couples often endure.

“It’s hard for her to make some of those difficult decisions sometimes, and I do my best, and right now that we have the break before training camp I’ve done a lot with regards to the food and getting our engagement photos taken care of, getting ready to work on our save the dates, figuring out all the smaller, logistical stuff,” Overton explained.

“There are a lot more decisions to be made between now and next March, so she’s going to have to take the reins and I’m going to do my best to help her along the way, over the phone or FaceTime, whatever it may be.”

While Overton and Fonner have long supported each other, their romance got off to a unique start as they had to keep the relationship under wraps due to rules prohibiting players from fraternizing with cheerleaders.

“That was hard and a challenge at first,” Overton recalled.

Once Fonner retired from cheerleading, she and Overton were able to make their relationship public, with the support of the Colts’ new cheer coach.

“She went to the new cheer coach and told her about us. She was very supportive,” he shared.

Fast-forward to this past April, when Overton popped the question. But as the former Pro Bowler noted, he knew Fonner was “The One” for quite some time.

“We’ve been in a relationship on-and-off for about four years,” he said. “It was earlier this year for sure that I was going to plan on proposing, and it took a while for me to kind of figure out when and where because I leave for Jacksonville in the spring for the offseason and she’s in Indianapolis, and I wanted to make sure that I proposed to her before I left for OTAs and that’s kind of when it all happened.

“But I knew a couple years ago that I wanted to ask her to marry me eventually and think the timing was just right this past April,” Overton added.

With a guest list currently at around 200 people, Overton and Fonner have reconciled with the fact that the affair will not be a small-scale gathering.

“For my side of the family and friends, it’s a destination wedding, and everyone’s going to have to travel from the west coast to Indianapolis,” the California native said. “I think what once started off as a small, intimate wedding, it’s kind of grown a little bit larger, but everyone there is still going to be immediate family and close relatives and best friends.”

As for their must-haves for the big day, both Overton and Fenner are hoping to celebrate their first hours as husband and wife a beloved treat.

“I think our favorite dessert is bread pudding, so as long as there’s bread pudding for us, and I think what we’re going to do is, it’s possible we just have a cake or a dessert option for our guests, and for us have our own special made bread pudding,” he shared.

With the Jaguars set to open training camp on Thursday, July 25, Overton knows Fonner will soon have her hands full with planning, but hopes a few friends can offer some pointers.

“I know a lot of guys get married during this time of the year in between OTAs and training camp, and there’s a lot of planning that goes on earlier in the year when the season’s over. So we’re in the situation where, right when I get back home [to Indianapolis] from the season, the wedding is right around the corner, so I’ll definitely have to reach out to some guys that could lend some good advice” Overton said.

“I know in the end it will all work out and be great.”