Never skip leg day ppl! Squats (500 lbs) paired with box jumps (51 inches) #legday A video posted by David Johnson (@davidjohnson31) on Jul 6, 2016 at 2:34pm PDT

Most things a professional athlete does to train might surprise and impress the common man. We admit that.

But some things flat out can’t be unseen, and Cardinals running back David Johnson squatting 500 pounds a couple times like it’s nothing and then box-jumping 51 inches is one of those things.

Johnson posted his workout video to his Instagram account with the accompanying caption “Never skip leg day, ppl!”

It appears he’s taking a visit to Northern Iowa based on the Panther logo in the background, and it’s probable the post will make Arizona fans giddy with excitement about what the 6-foot-1, 224 pound running back can accomplish in his second season.

The expectation is that Johnson will improve upon his 581 rushing yards (4.6 yards per carry), 457 receiving yards (12.7 yards per catch) and 13 total touchdowns from 2015.

Just by the looks of it — and without any relative weight-lifting experience — Johnson can live up to those expectations if 2016 goes anything like Wednesday’s leg day.

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