The Los Angeles Lakers took home the NBA championship this week. But the close of the season also marked a big victory for the league itself. The NBA played its finals in a unique environment that came to be known as the bubble.

Players were frequently tested and social distancing was heavily enforced. And, the experiment worked. The NBA did not report a single positive coronavirus case from players or staff. Reporters Emma Court and Brandon Kochkodin describe how the league did it, and whether other organizations can replicate its success.