During the 2020 season, injured reserve only requires that a player miss a minimum of three weeks, so teams will use that list more freely than in previous seasons. We will therefore distinguish between players placed on injured reserve (IR) and players who we expect to miss the rest of the season (Season).
Titans Left Tackle Taylor Lewan -- Knee (Season)
Lewan announced on Twitter that he tore his ACL against the Texans, meaning he will require surgery and his season is over. The middle to end of October is the time at which ACL rehab usually begins to threaten the player's participation in training camp and his readiness for next season, as with modern surgery and rehab a common recovery period is now around nine months.