With Brock Purdy’s contract extension on the horizon, the 49ers’ ability to retain high-priced free agents will get tricky.

The 49ers could hire a new special teams coordinator soon. They've completed an interview with Detroit Lions assistant special teams coordinator Jett Modkins.

Jett Modkins, the team’s assistant special teams coach, interviewed with the San Francisco 49ers for their vacant special teams coordinator position. Modkins has worked with Lions special teams ...