Pittsburgh Steelers linebacker James Harrison will play his final season this year at age 37.

Known for being a bit testy at time, Harrison, one of the most fined played in the NFL for personal foul penalties, is heavily active on his social media accounts.

Yesterday afternoon, Harrison got a knock on his door by an NFL drug tester.

NFL players can be randomly drug tested for PEDs.

He began recording the encounter, but the NFL apparently didn't like the idea.

Did you hear that? The tester verifies Harrison's claim that he won't be tested if the process is recorded, and if he's not tested that day, his test will be positive.

The NFL threatened Harrison with a positive test if he didn't comply.

Harrison has always butted heads with the league, something that endears him to many fans who do not like NFL Commissioner Roger Goodell.

Critics have questioned Harrison's productive play at his age, leading some to question why Harrison would go through the trouble of wanting to record the encounter.

He clairfied his intent on an Instagram post earlier today.

The truth is, Harrison has always enjoyed pushing the NFL's buttons. He's stated his hatred for Goodell, claiming he will never respect him.

More From 103.3 The GOAT