Mark Gastineau blames Brett Favre for not being in the Hall of Fame.

In the trailer released Tuesday for ESPN’s upcoming 30 for 30 “New York Sack Exchange” documentary, Gastineau — the former Jet and one-time NFL single-season sack record holder — confronts Favre, whom he is still mad at for “taking a dive” when Michael Strahan broke his sack record in 2002.

While at the Chicago Sports Spectacular in 2023, Gastineau confronted the former Packers quarterback.

In the video, Favre extends his hand for a handshake, which is not reciprocated by the Jets legend.

“How are you doing,” Favre asks, which is also ignored by Gastineau, who says, “When you fell down for him [Strahan].”

“I want to get my sack back,” Gastineau says twice, as Favre looks in shock.

“You probably would hurt me,” Favre responds.

“Well, I don’t care. You hurt me,” Gastineau says multiple times as Favre walks away bewildered by the interaction.

Gastineau, 68, was in attendance for Strahan breaking the record in the 2001 season finale on Jan. 6, 2002.

He hugged Strahan that day, but has accused Favre of taking a dive so Strahan, Favre’s friend, could claim the record with his 22.5 sacks, breaking Gastineau’s 1984 mark of 22.

Gastineau has battled cancer and in 2017 said he was diagnosed with “dementia, Alzheimer’s and Parkinson’s.”

“Do you know how long I have thought about [not being in the Hall of Fame]? A long time,” Gastineau says during a sit-down interview released in the trailer.

He added: “The NFL should’ve stopped that and said no, that wasn’t a sack. He took my record away from me. Anybody will tell you that Favre took a dive … and everybody knows it.”

Favre has denied taking a dive. When it happened, Troy Aikman said on the broadcast that “[Strahan] got a gimme.”

“Rolls right and gets sacked by Michael Strahan,” Giants longtime radio commentator Bob Papa said on the broadcast. “Favre ran right into him. It almost looked like it was a designed play. They’re buddies. He faked the handoff, rolled right and then just slid down in front of Strahan.”

Favre said he was “chewed out” by offensive coordinator Mike Sherman after the game for that play.

“I could care less if he got it or not,” Favre said on #10Questions with Kyle Brandt in 2021.

In the trailer, Gastineau’s ex-teammates, including Abdul Salaam and Marty Lyons, call him a selfish player in his heyday.

“If you don’t want to admit you were selfish, then fine. That’s my opinion, you were selfish,” Lyons said.

Since Strahan claimed the sack title, Steelers pass rusher TJ Watt tied Strahan’s 22.5-sack mark in 2021, pushing Gastineau to third all time.