FILE - In this March 3, 2020, file photo, Boston Celtics guard Marcus Smart (36) reacts to a call during the second half of an NBA basketball game against the Brooklyn Nets in Boston. Celtics guard Marcus Smart says he has been cleared by medical officials after testing positive for the new coronavirus earlier this month. In a message posted late Sunday, March 29, 2020, on Twitter, Smart says he was informed of the news Friday by the Massachusetts Department of Health. He thanked everyone for their support. “Stay safe and stay together _ apart!” Smart wrote.(AP Photo/Mary Schwalm, File)

FILE - In this Wednesday, March 25, 2020, file photo, a man walks in front of a Tokyo Olympics logo at the Tokyo metropolitan government headquarters. The postponement of the Tokyo Games has catapulted the sports organizations that make up the backbone of the U.S. Olympic team into crisis. (AP Photo/Koji Sasahara, File)