Four months later, China is grappling with the coronavirus that has sickened thousands of its people and disrupted the economy, and as the N.B.A. embarks on its signature All-Star weekend, in Chicago, there are signs that tension between the two sides has begun to dissipate, even beyond the tweet from Cui. “Right now, our focus is on working with global health organizations to provide whatever assistance we can to the people of China in response to the coronavirus outbreak,” N.B.A. Commissioner Adam Silver told The New York Times on Thursday in an emailed statement. “Many of our Chinese partners were unable to attend our N.B.A. All-Star events because of travel restrictions, but all of the weekend’s events will be carried in China on Tencent.”