James Harrison announces he'll return to Steelers for 2016 season

James Harrison wanted to test his body this offseason before committing to one more year with the Pittsburgh Steelers. 

Looks like his body passed that test.

Harrison, a weight-lifting fanatic, took to Instagram on Monday to announce that he was feeling fine and ready for action. He's due to make $1.5 million this season.

An error occurred while retrieving the Instagram post. It might have been deleted.

The linebacker, who went undrafted in 2002, has spent nearly his entire career with the Steelers. He won two Super Bowls and made five Pro Bowls during his time in Pittsburgh.

He might want to brace himself for a different kind of test now.

In February, when his agent hinted that Harrison would return to the Steelers, the NFL came calling with a random drug test.

An error occurred while retrieving the Instagram post. It might have been deleted.

One thing's for sure, they'll know where to look for him first -- in the gym, working out.