The NBA announced Thursday that of the 558 players tested for COVID-19 since Dec. 16, two new players have returned confirmed positive results.
In accordance with league policy, names of players were not disclosed.
Players who test positive must isolate until they are cleared under the rules established by the league and its players' association, which were created in accordance with CDC guidance.
With no bubble during its December resumption, the effects of COVID-19 are already being felt by NBA teams.
On Wednesday, the Houston Rockets' season opener against the Oklahoma City Thunder was postponed after contract tracing made several Rockets players ineligible to participate, leaving them without the minimum required number of players to play a game.
No new date for Rockets versus Thunder has been determined at this time.
Earlier in December, the Toronto Raptors announced that three members of their organization had tested positive for the virus, but the club didn't say whether any of those positive tests came from players.