But when asked about what exactly the threshold for having to shut down would be, Silver acknowledged, “It’s the right question, and I’m not sure yet.” He went on to say: “Certainly, if we had any sort of a significant spread at all within our campus, we would be shut down again.”

“It would be concerning if once [the players] sit through our quarantine period, and then were to test positive, we would know that, in essence, there’s a hole in our bubble,” Silver added. “That our campus is not working in some way.”

Silver expressed confidence in the NBA’s medical procedures and team of advisers, led by renowned virologist and researcher David Ho. “We do have the ability to trace, to try and understand where that positive case came from,” he said. “We can analyze the virus itself and try to track whether, if there’s more than one case, if it’s in essence the same virus, the same genetic variation of the virus that has passed from one player to another.”

Optimism about the NBA’s quarantined campus is high enough that Silver himself plans to attend. “There will be an opportunity for some people to move on to the campus having first been tested but remaining very far from the protected people,” such as players and referees, “who are participating in the games,” he said.

“I’ll still be tested in order to come on to the larger campus,” Silver said. “But I will stay far away from players.”

More coronavirus coverage from Fortune:

• Why Black-owned businesses were hit the hardest by the pandemic
• Pop-up retail was made for the pandemic
• How the coronavirus crisis has affected female founders
• The enduring history of health care inequality for Black Americans
• E-book reading is booming during the coronavirus pandemic