Most college football programs across the country have some type of 1-on-1 battle drill, typically used to jack up the team when the head coach thinks it's necessary.
Army's football program shared a video on social media last week of its drill.
It looks pretty intense.
The Black Knights, who are coming off an impressive 11-2 season, aren't holding back in spring practice.
Check it out:
Longtime college football reporter Tim May had a good point regarding the video, too:
"I watch something like this, and I swear, my very first thought is who 'invented' that giant Frisbee with handles, and how much does it cost as a piece of 'specialty' training equipment," he tweeted.
He's right. Is that custom made or is there a company out there that makes them? And if so, does anyone buy them but football teams?