Player Approximate Value (PAV) is a system which quantifies an individual's attacking, defensive and midfield contributions to their team. Marginal PAV (mPAV) is a per game version of the measure, where 0 is the average output of all players.

"Year 0" is either the year of the injury or the previous year if the injury was in preseason.

Average trajectory is average of players who played to 3+ years after the injury.