Free agent wide receiver Antonio Brown believes another NFL player triggered his aggressive behavior.

During an appearance on Instagram Live, Brown claimed that a punch by former Steelers linebacker James Harrison caused trauma to his brain.

«I wanted to tell you that I think James Harrison gave me CTE,» Brown said. «James Harrison had an illegal helmet for over 20 years in the NFL and he hit me once. And ever since he hit me, I’ve been super aggressive. So blame James Harrison for my CTE.»

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Antonio Brown of the Tampa Bay Buccaneers before a game against the Atlanta Falcons at Mercedes-Benz Stadium on December 20, 2020 in Atlanta.
(Kevin C. Cox/Getty Images)

Chronic traumatic encephalopathy (CTE) is a brain condition that researchers have determined is caused by repeated blows to the head or multiple concussions.

CARDINAL’ MARQUISE ‘HOLLYWOOD’ BROWN PLEADS GUILTY TO SPEEDING CRIMINAL AFTER DRIVING 126 MPH

Brown and Harrison spent most of their NFL careers with the Steelers. The catcher could be referring to a hit he received during a Steelers practice or during a game against the Bengals in 2013.

Harrison left Pittsburgh for Cincinnati in 2013 before returning to the Steelers in 2014.

Tampa Bay Buccaneers wide receiver Antonio Brown wipes his face as he leaves the field after throwing his equipment into the stands while his team was on offense during the third quarter of a game against the New York Jets on May 2. January 2022, in East Rutherford, USA New Jersey

Tampa Bay Buccaneers wide receiver Antonio Brown wipes his face as he leaves the field after throwing his equipment into the stands while his team was on offense during the third quarter of a game against the New York Jets on May 2. January 2022, in East Rutherford, USA New Jersey
(Andrew Mills/NJ Advance Media via AP)

Brown was the victim of a helmet-to-helmet hit in a game against the Bengals, but linebacker Vontaze Burfict delivered it in 2016, not Harrison.

Brown’s behavior has caused him several challenges over the years. Last December, domestic charges were filed against Brown following an incident at his home in Florida. The charges were ultimately dismissed. In October, he was ordered to pay a moving truck driver $1.2 million following an alleged assault in February 2020.

Tampa Bay Buccaneers wide receiver Antonio Brown (81) makes a catch and goes the distance for a score during a game against the Miami Dolphins on October 10, 2021 at Raymond James Stadium in Tampa, Florida.

Tampa Bay Buccaneers wide receiver Antonio Brown (81) makes a catch and goes the distance for a score during a game against the Miami Dolphins on October 10, 2021 at Raymond James Stadium in Tampa, Florida.
(Cliff Welch/Icon Sportswire via Getty Images)

The 34-year-old was sued in 2018 after furniture was thrown from a balcony and nearly hit a 22-month-old boy. Brown later settled the lawsuit.

CLICK HERE TO GET THE FOX NEWS APP

Brown won Super Bowl LV with the Buccaneers and re-signed with the team in 2021.

During a match in January 2022, he became upset on the sidelines, removing his jersey, shoulder pads and gloves and walking off the field. He hasn’t played in the league since.