Former Rams running back Isaiah Pead was involved in a car crash that resulted in having his left leg amputated in 2016.
While he's no longer playing football, he has set his sights on the 2020 Paralympics and winning a gold medal in track.
He tweeted in April about contacting the U.S. Paralympic team.
This week, he made a huge step toward that goal.
Pead posted a video on Twitter of his first steps in a prosthetic running leg.
Pead will be 30 years old at Tokyo games, and he's told TMZ before he's looking to win "maybe three gold medals.