8 videos of James Harrison's most insane workouts

Linebacker James Harrison will be remembered for so much in his remarkable NFL career, from how he fought his way to the top after going undrafted to that incredible 100 yard-interception that led to a Super Bowl win.

But he'll also go down in history for posting some of the craziest workout routines on Instagram. Let's revisit them after he retired on Monday.

1. He did pushups with a Maurkice Pouncey on his back

2. These absurd pushups

3. Have you ever played "volleyball" with a giant medicine ball?

4. He pushed 1,800 pounds once

5. He said "DO NOT try this!" about this one

6. WHAAAAAA?!!!?

7. This isn't that crazy … except when you realize it came hours after a playoff win

8. The fact that he's still doing this stuff AFTER announcing he was retired

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