Non-contact or indirect contact mechanisms account for 85% of ACL injuries in male professional football players, predominantly occurring during pressing, kicking, and heading.
Eighty-five per cent of the ACL injuries in male professional football players resulted from non-contact or indirect contact mechanisms. The most common playing situation leading to injury was pressing followed by kicking and heading. Knee valgus was frequently seen regardless of the playing situation, but a dynamic valgus collapse was rare.
Waldén et al. (Thu,) studied this question.