FILE -Golden State Warriors guard Stephen Curry (30) wears a face mask to protect against the spread of COVID-19 during the second half of an NBA basketball game against the San Antonio Spurs in San Antonio, Tuesday, Feb. 9, 2021. U.S. sports leagues are seeing rapidly increasing COVID-19 outbreaks with dozens of players in health and safety protocols, amid an ongoing surge by the delta variant of the coronavirus and rising cases of the highly transmissible omicron mutation. (AP Photo/Eric Gay, File)