MLB struggling to get attendance back to pre-pandemic levels
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How all 32 NFL teams are managing fan attendance during the pandemic
College football attendance: COVID-19 cases spreading - Sports Illustrated
NFL per-game attendance makes big jump - New York Business Journal
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Going gangbusters: NFL attendance has bounced back in a major way - New York Business Journal
Super Bowl 55 will have 22,000 fans, including 7,500 vaccinated health care workers
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By allowing the teams to determine their attendance, has the NFL given the Cowboys a competitive advantage?
Fans Or Not, NFL Braces for New Stadium Feel, Sudden Changes – NBC4 Washington
NFL's uneven fan attendance policy could create unfair advantage
How all 32 NFL teams are managing fan attendance during the pandemic