"Wow," tweeted Marlins second baseman Dee Gordon. "The @FlaPanthers won in overtime with a goal from #16! That's so dope!"
"Can't make this stuff up," tweeted Marlins pitcher Tom Koehler.
The Panthers are the latest South Florida sports team to pay tribute to Fernandez, the two-time Marlins' All-Star pitcher who died in a boating accident on Sept. 25.
They join the Miami Heat, the Miami Dolphins and the University of Miami in paying their respects since the tragedy.
"It's been overwhelming," Marlins senior vice president of communications and broadcasting P.J. Loyello said. "The sports community here is a small one. We're tight. We're, obviously, extremely grateful."
Loyello, team president David Samson, and executive vice president of operations and events Claude Delorme were part of group from the Marlins at the Panthers' opener.
Gordon and Miami lefty Adam Conley were also on hand. Representing the organization, the two accepted a donation of $35,000 by the Panthers to the JDF16 Foundation, established to assist Fernandez's family.
Conley tweeted: "Thank you @FlaPanthers for your support and love. Tremendous opener, game winning OT goal by #16. #GodAtWork."
Fernandez's legacy touched so many in South Florida and the sports world.
Before the Marlins opened Spring Training this season, Fernandez attended a Panthers' game as part of Miami's caravan week. He took to hockey and was enthusiastically rooting on the Panthers.
Pregame Thursday, the Panthers all came out for a warmup skate with Fernandez 16 on their backs.
"It's an unprecedented thing," Loyello said.
Throughout the MLB playoffs, several players also have made their personal tributes, including Cubs closer Aroldis Chapman and Blue Jays right-hander Aaron Sanchez. They've written either Fernandez's name or initials and No. 16 on their caps.
In the final days of the regular season, a number of MLB clubs customized Fernandez 16 jerseys that hung in their dugouts.
"We've received jerseys from many, many teams the last weekend," Loyello said. "Fernandez signed 16 jerseys. The Nationals presented us one the final game of the season."
The Mets, Dodgers and Braves also sent the Marlins their jerseys.
"Players wrote personal messages on the jersey for us," Loyello said. "It's been unreal."