When the Rams left, Kevin Poskin was left with one broken heart and two Rams jerseys — home and away — which he used to wear accordingly each fall Sunday.

“I was devastated,” said Kevin, now 22. “No burning jerseys or anything over here, it wasn’t like that. But — my team’s dead now.”

Like so many other St. Louisans, Kevin had to make a decision. Would he give up on the NFL? No, couldn’t do that. So, who would be his new NFL team?

Some buddies decided to stay in-state and adopt the Kansas City Chiefs. Others became fans of teams with great histories, such as the Denver Broncos. Some friends, Kevin perplexedly shared, remained fans of the now-Los Angeles Rams.

But Kevin is quite possibly the only guy in St. Louis who went this route, adopting the most-random of NFL teams — the Jacksonville Jaguars.

“I was like, let’s go with another losing team, because that’s kind of my thing at this point,” Kevin said.

Unlike St. Louis fans of an older generation, the show Kevin saw on turf surely wasn’t the greatest. He was born in 1995, the same year the Rams debuted in St. Louis, so once he was old enough to follow football his team wasn’t too good at playing it. But he loved these losers. To this day, friend Andrew O’Connor remembers how crestfallen Kevin was when Sam Bradford tore an ACL in a 2014 preseason game. In their final 11 seasons in St. Louis, not once did the Rams have a winning record.

“It was rough,” Kevin said, matter-of-factly. “But that was how I knew football.”

And it was still how he knew football in 2016, since he had adopted the Jacksonville Jaguars.

“They’re losers, so when they win, I’ll feel like I wasn’t jumping on a bandwagon of any kind,” Kevin reasoned. “And I went AFC this time. All my thoughts were all flawed with the NFC, at least in the Rams’ division. See, I hated the Seahawks when I was a Rams fan, but now I hate the Rams, so do I love the Seahawks? I don’t know how that works! So I was like, let’s just jump out of the NFC.”

Kevin didn’t even know the name of the Jaguars’ stadium. But heading into the 2016 season, the college student essentially took on another major, studying the Jacksonville Jaguars. He followed numerous Jaguars beat writers and players on Twitter, and got lost in Reddit forums discussing the squad. He even convinced O’Connor to join him for the ride.

“Why not?” O’Connor said. “Last year when they were bad, so it kind of felt like a normal season. You kind of go into a game expecting to lose, it’s like being a Rams fan again. … I tell people I’m a Jaguars fan, and they kind of look at me weird.”

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Kevin watched every Jags game that season, but since they aren’t often televised in Missouri he’d stream them on his laptop. He bought a Blake Bortles jersey, which he hangs on his wall every day except game day. He changed the background screen on his phone to a Jaguars player, and he changed some of his passwords to variations of players’ names. He even attended a Jags game at Kansas City, and was surprised how nice the fans were. They’d assumed he was a long-suffering fan.

“ I still knew what it felt like,” he said. “Just not with that team.”

Later that 2016 season, he got a new laptop that had some issues. It would overheat and malfunction sometimes. Kevin eventually took it back to the store, but he still had the laptop on the day of a winter Jags game.

“I literally went out onto my deck, snow on the ground, bundled up and watched the Jaguars play – because my laptop wouldn’t overheat if I was in the freezing weather,” he said. “I’m out in the snow, watching the Jaguars lose. I remember thinking ‘What am I doing?’ I was running inside during commercial breaks. But I felt very obligated to watch all of the games, even when we were losing.”

Heading into 2016, the Jags had averaged 3.8 wins per season in the past five seasons. And in 2016, they had three wins.

But Kevin saw potential in many of the defensive players. And five of the team’s losses were by four or fewer points. He’d text his buddies, swearing the Jags would be good in 2017, and they’d just laugh. But Jacksonville had some new coaching personnel. And in the 2017 draft, Kevin’s Jags selected the player he yearned for: running back Leonard Fournette.

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And sure enough, the 2017 Jaguars started winning. And winning. The Jaguars? Was this really happening? Yep, the Jacksonville Jaguars went 10-6 and won the division. And Kevin was driving the bandwagon.

“This year, I only missed the second half of the Christmas game — I had to go to mass,” he said. “God first, football comes later. And then I missed the New Year’s Eve game — I was at a wedding. But for both of those games, we had already clinched the playoffs, so I didn’t feel too bad about that.”

The Jaguars won their first playoff game — the wild card round against Buffalo.

Then they won at Pittsburgh in the divisional round.

And on Sunday, the Jacksonville Jaguars (this is crazy to even type) play at New England in the AFC championship game.

From a 3-13 record to a win away from the Super Bowl.

And now, the former Rams fan is experiencing something he didn’t get to in 1999, because he was too young: His terrible team completely turning it around and playing for a title the very next year.

A Mizzou student, Kevin isn’t sure where he’ll watch the game — “I get very invested — I don’t know if I should be in public,” he said — but he’ll likely make his traditional pre-game chicken wings and wear his lucky shamrock socks.

“I’ve been wearing those every Sunday,” said Kevin, who was born on St. Patrick’s Day in 1995, just 30 days after the Jacksonville Jaguars’ expansion draft.

As if there weren’t already enough reasons for St. Louis fans to root against New England on Sunday, Kevin Poskin’s fun journey makes for one more.