Despite those changes, there were still instances of traditional players’ contact in postgame scenarios, which led the NBA to issue a memo Wednesday reaffirming the rules that require teams to remain on their half of the court in pregame and halftime warm-ups and limits to physical contact that includes only elbow or fist bumps.

High-fives, hugs, and handshakes aren’t allowed, nor are extended postgame conversations.

The NBA postponed its 16th regular-season game Tuesday — the Memphis Grizzlies at the Portland Trail Blazers. This time, the reason was because of ongoing contact tracing within the Grizzlies.