The National Football League says at least 84 players and staff have tested positive for COVID-19 since the season started, not counting this week, after forgoing using the kind of “bubble” strategy used by the NBA and NHL. On Monday, the NFL announced the use of new video surveillance to make sure teams are adhering to COVID protocols at their facilities and increasing the penalties for violations. In for Jim Braude, Adam Reilly was joined by Ben Volin, senior NFL writer for The Boston Globe.