With more than 90 players in COVID health and safety protocols and the omicron variant spreading at shocking speed, the NBA and the players union have agreed to new rules aimed at helping teams field fuller rosters and helping the league avoid postponements. Teams are permitted to sign one replacement player for each player who tests positive for COVID-19, and teams are required to sign at least one replacement player if two test positive, at least two replacement players if three test positive and at least three if four or more test positive, per ESPN.

The new rules, which will be in effect until Jan. 19, stipulate that replacement players' salaries will not count toward the salary cap or luxury tax. When a team has multiple COVID cases on its roster and must sign a replacement, the player must be available by the beginning of its next game. 

For an NBA game to be played, both teams are required to have eight players available. The league has postponed nine games this season, and several teams have played severely shorthanded.