Why NFL flexes games and how changing the schedule works – NBC Sports Bay Area & California
The NFL's new Thursday flex scheduling has one major loser: The fans - The Boston Globe
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Roger Goodell muses that Thursday Night Football games could eventually be flexed
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NFL approves flex scheduling for 'Thursday Night Football'
New rule means NFL could flex these two Eagles games to second Thursday Nighter
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NFL Schedule 2022: Week 18 Sunday Night Football flex predictions - Sports Illustrated