If you are familiar with the NBA, there's a lot of players and staff who are already infected, but that was during in the process or before they travel to Orlando, but there's always the risk here, so let's hope that once the league formally resume their season, there would be no more infections that will be recorded.
There is a call to resume and there is a call to suspend this year season, there are so many teams in the NBA compared to other sports so the infection is very likely and besides these players are transient, they go from one location to another, the risk is too high in NBA compared to other contact sports like Boxing and UFC and Wrestling, but they have experts who will study this, let's just hope, that they will consider safety over profit.
Recently, Rockets' Russell Westbrook of Rockets tests positive for coronavirus so if someone got infected by the virus, the scheduled match or will be postponed and it's hard for the organizer to fix things. So it's better to take more precautionary measures or postponed the events so we can help to minimize cases per day. There will be always a risk and we can't avoid that, if we're taking the risk then there are some points that we make things very difficult to our health workers. Even its Boxing or UFC, there's still a risk you should face and as long as the COVID-19 vaccine still not exist, it's not safe around. Other solution to this is end the season quickly, they should prioritize their health and think about their relative who can be in danger once they got contact with the virus.