Frank Ragnow’s sudden retirement has transformed the Detroit Lions’ offensive line landscape overnight. What was once considered among the NFL’s elite units now faces a “giant question mark” heading into the 2025 season.

The Lions know it won’t be easy to replace longtime starting center Frank Ragnow, who announced his retirement earlier this week. Ragnow, the No. 20 overall pick in the 2018 NFL Draft, played his entire seven-year professional career in Detroit,