A 10-year-old’s signed Flyers jersey disappeared after Game 3. Then the fan base rallied around him.

Shane Temple is 10 years old, a die-hard hockey fan, and sometimes, when the Philadelphia Flyers are on a tear, he takes his shirt off in celebration.

The young fan did just that on Wednesday, five minutes before the end of the Flyers’ chaotic 5-2 win over the Pittsburgh Penguins in the first round of the Stanley Cup playoffs. It was Shane’s first postseason game and his favorite player, 25-year-old Trevor Zegras, had scored his first career playoff goal.

“Insane” is how Shane described the Xfinity Mobile Arena.

“It was so loud that when I was trying to talk to my dad, he couldn’t even hear me,” he said.

By the time the Flyers secured a 3-0 lead in the series and Shane was walking out of his section with his dad and older brother Ryan, 14, panic set in.

“I was just excited and I was just waving my shirt around, and then when the game was over, I realized I lost it,” he said.

The young boy was inconsolable, said his father, Rich Temple, 50, who helped his son scour the rows surrounding their seats.

This wasn’t just any jersey. Shane, who has been playing hockey for six years, had his Zegras jersey signed by the center in February at the Flyers Charities Carnival.

At home, Shane’s parents filed a report with the arena in case it was found. His mom, Kathy Temple, 46, then took to Facebook fan groups to ask if anyone had found her son’s jersey. She took to Instagram to message people who worked for the team.

“I saw how upset [Shane] was, so I looked at him, and I said, ‘Buddy, I’m going to do everything I can to find this jersey or replace it,’” she remembered.

While most fans extended their sympathies to Shane, some people online were critical, asking why he took off his shirt in the first place.

It’s unclear exactly when and where Shane picked up the habit, though the shirt wave is not exclusive to hockey or Philadelphia. See: NFL fans, basketball fans, and the “tarps off” trend that swept college football last year.

During a Flyers game in October, an animated Shane beamed from the scoreboard as the fan camera captured him shirtless in a tied third period between the Flyers and the Minnesota Wild.

Relief came by way of Taryn Hatcher, former Phillies sideline reporter with NBC Sports Philadelphia, who was at the game. She reached out to the Flyers’ public relations staff, who agreed to help replace the signed jersey. Hatcher has shied away from accepting the hero label the Temples are eager to bestow upon her. She said she simply was the first to answer and forwarded the message to people who could help.

“It was honestly one of the best sporting events I can remember being live at as a fan and I just thought how sad it must be to have that tainted by something like that,” Hatcher said in a text message.

Speaking from his home in Havertown, Shane was grateful for all his parents and Hatcher did to get him a replacement jersey, which he should have by early next week. He said he could finally “stop thinking about it” and focus on Game 4 and then Round 2 of the playoffs.

His parents, meanwhile, feel buoyed by the outpouring of support.

Shane’s father said Game 3 was already a “dream come true” for him as a father. He got to pass down moments he shared with his father when they were season ticket holders at the Spectrum. His boys got to meet Gritty and former Flyer Scott Hartnell.

Rich Temple would have settled for one goal, win or lose. Instead, the team scored five and won. It was a “storybook” game momentarily marred by the jersey’s loss. Thanks to Flyers fans, though, the story of that game only got better.

“Philly truly does have the best fan base in all sports,” Shane’s father said.