Each year, the salary cap is set to a number designed to get total player salaries to about 50% of league-wide revenue. Obviously, that’s a difficult target to hit precisely. So, there are mechanisms to adjust the distribution of money if necessary. If their total slated salaries are higher than 50% of revenue, players don’t receive their full salaries. If their total salaries are lower than 50% of revenue, players get a shortfall check from owners.
Coronavirus has disrupted that well-oiled system