He and the Hornets (20-43) were playing their best basketball of the season before the point guard fell to the floor on a non-contact play in the third quarter.

Source: https://www.dailynews.com/2023/02/27/hornets-lamelo-ball-breaks-ankle-latest-setback-in-rough-season/

In April of 2022, however, he tore his ACL in a non-contact drill and he missed the entire season.

Source: https://www.dailycamera.com/2023/08/24/running-back-alton-mccaskill-iv-ready-to-bust-loose-prove-himself-with-cu-buffs/

In the first preseason game of Abara’s junior year, he suffered a non-contact, season-ending ACL tear in his right knee after slipping and getting his foot caught in a hole at Mililani.“

Source: https://www.staradvertiser.com/2023/03/26/sports/hawaii-prep-world/player-of-the-year-kaleb-abara-took-flight-for-iolani/

The most common violation is allowing contact during practices that are supposed to be non-contact.

Source: https://larrybrownsports.com/football/reason-patriots-stripped-ota-practices-meeting/615556