Chad Johnson has spent some time this NFL off-season working with some current NFL wide receivers including Mohamed Sanu and Antonio Brown but he's not running routes with them, he's squaring up against them on the other side of the ball.

Today, Johnson challenged the Steelers' star to a little 1-on-1 in Miami and showed that he's still got the foot speed to keep up with one of the NFL's speediest wide outs.

The 39-year old is now shifting his attention to the New York Giants' Odell Beckham Jr. Look out for that showdown coming soon to Chad Johnson's IG page.

Check out the footage from his 1-on-1 with AB below.