Paul Posluszny, who earned AFC Defensive Player of the Week honors after leading the Jaguars to their first win of the season last week, will miss Sunday's game against the Cardinals with a concussion.
Posluszny suffered the injury late in the fourth quarter against the Titans after anchoring a defense that forced a season-high four turnovers.
The seven-year veteran is third in the NFL with 68 solo tackles. He also has seven pass deflections, two interceptions and a sack. Sunday will be the first game he's missed since joining the Jaguars in 2011. SI WIRE: Adrian Peterson 'wants to stay' with Vikings