FILE -Vancouver Canucks goaltender Braden Holtby (49) wears a protective face mask to help prevent the spread of COVID-19 as he congratulates Thatcher Demko (35) on the team's win over the Toronto Maple Leafs in an NHL hockey game Thursday, March 4, 2021, in Vancouver, British Columbia. 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. (Jonathan Hayward/The Canadian Press via AP, File)