The Titans placed Johnson (ankle) on injured reserve Friday, Jim Wyatt of the team's official site reports.
Johnson underwent ankle surgery Tuesday, so a move to IR isn't a surprise. The cornerback was set to serve a six-game suspension at the start of the regular season as well, which will be considered served even if he does not actively participate in practice. If Johnson thinks he can play in 2026, he will need to reach an injury settlement with the Titans to be released from the team's IR.