Sources -- NFL, NFLPA investigating whether Titans violated coronavirus protocols - ESPN
Titans-Steelers Game Postponed Indefinitely Amid Coronavirus Outbreak : Coronavirus Updates : NPR
2021 Eastern Washington University Football Fact Book (posted July 22, 2021) by Eastern Washington University - Issuu
The Latest: Cowboys win, NFC East teams all have 3 wins
NFL COVID rules, explained: Everything to know about coronavirus and football in 2020
N.F.L. Punishes Titans for Their Handling of Coronavirus Outbreak - The New York Times
N.F.L. Indefinitely Postpones Steelers-Titans Game After New Virus Cases - The New York Times
Titans' game vs. Steelers being postponed
Timeline of the NFL COVID-19 outbreak -- How positive tests led to postponed games - ESPN
NFL postpones Ravens-Steelers Thanksgiving game amid COVID-19 concerns
Tennessee Titans, Minnesota Vikings close facilities after Titans players test positive for the coronavirus - ESPN