NFL might not flex any Sunday night games this season
Expect NFL to flex its scheduling muscles beginning next season - Chicago Sun-Times
NFL OKs flex scheduling, but Packers fans might not have to worry
NFL owners approve modified 'Thursday Night Football' flex plan by a vote of 24-8, per report
NBC Sunday Night Football - Wikipedia
Thursday Night Football - Wikipedia
Monday Night Football' flex games are coming in 2023 and could impact Bills fans' travel plans
Roger Goodell muses that Thursday Night Football games could eventually be flexed
NFL approves flex scheduling for 'Thursday Night Football'
NFL: Denver Broncos mercifully flexed out of Sunday Night Football