The National Basketball Players Association sent a memo to its players on Friday detailing a doomsday provision in the collective bargaining agreement that could free owners from paying players a percentage of their salaries should the rest of the 19-20 season be canceled due to COVID-19.

The CBA includes a clause called the force majeure event clause that includes multiple dramatic scenarios such as pandemics. 

The next scheduled paycheck for players comes on Sunday, and those will be fulfilled.

According to Article XXXIX, Section 5 in the CBA, players lose 1/92.6 of their salary for every game missed as a result of a force majeure event.

Based on back of the envelope math, the NBA could lose $500 million just in ticket revenue if the season is not picked back up.