FILE - NFL Commissioner Roger Goodell answers a question during a news conference for the NFL Super Bowl 54 football game in Miami, in this Wednesday, Jan. 29, 2020, file photo. Playing through the COVID-19 pandemic has yielded countless lessons for a league that was born in the shadows of the 1918 Spanish Flu pandemic. Goodell said the league will confer with the players union after the Super Bowl to discuss what measures might make sense keeping once the crisis subsides. (AP Photo/David J. Phillip)

FILE - In this Jan. 30, 2020, file photo, NFL Players Association Executive director DeMaurice Smith speaks at the annual state of the union news conference in Miami Beach, Fla. Playing through the COVID-19 pandemic has yielded countless lessons for a league that was born in the shadows of the 1918 Spanish Flu pandemic. Commissioner Roger Goodell said the league will confer with the players union after the Super Bowl to discuss what measures might make sense keeping once the crisis subsides. (AP Photo/Chris Carlson, File)

FILE - In this Dec. 8, 2019, file photo, Cleveland Browns center and NFLPA president JC Tretter walks off the field after an NFL football game against the Cincinnati Bengals in Cleveland. Playing through the COVID-19 pandemic has yielded countless lessons for a league that was born in the shadows of the 1918 Spanish Flu pandemic. Commissioner Roger Goodell said the league will confer with the players union after the Super Bowl to discuss what measures might make sense keeping once the crisis subsides.(AP Photo/David Richard, File)