FLORHAM PARK, N.J. — Annnnd they’re off!

Thanks to one social-media gesture, the stakes for 2016 just got even higher for two of the NFL’s best receivers: Brandon Marshall and Antonio Brown.

On Wednesday, the Jets receiver issued a friendly wager to the Steelers’ stud receiver to see who could collect the most receiving yards this season. The prize? A high-priced luxury automobile.

“If you have more receiving yards than me, I’ll give you the Porsche,” Marshall said in the 42-second clip, which was shot next to a white Porsche parked outside of the entrance to the Jets facility. “If I have more receiving yards than you, then you’ve gotta give me the Rolls-Royce.”

Last month, Porsche signed a deal to become the Jets’ official sports car and luxury brand — the first of its kind for the auto company.

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Brown, who reported to training camp in a black and yellow “galaxy-inspired” Rolls-Royce, doesn’t appear to be concerned. “He don’t really wanna do that,” he told TMZ. “He just wants some PR. He too old to be doing that.”

But Marshall insisted after Thursday’s practice that he was serious.

@ab I've never seen you back down from a challenge. #race4pinks

A video posted by Due Season.. . (@bmarshall) on

“It’s just competition,” he said. “It’s fun. It’s personal. And it’s real.”

Jets videos

The Jets’ star, however, refused to divulge whether the white Porsche he was posing in front of at the facility was his or team-owed.

“Listen, listen, listen, listen,” he playfully told reporters. “I can’t discuss all my finances, my assets and liabilities, you know?”