Steelers training camp won't be the first time Rodgers and Metcalf have worked together. The two held a throwing session together at UCLA in March, according to NFL Network's Mike Garafolo. That workout may have helped convince Rodgers to sign up for a 21st season in the NFL.

Aaron Rodgers has a shiny new weapon in DK Metcalf. Here's where the Steelers wide receiver ranks among the top receivers who have played with the future Hall of Famer.