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Aaron Rodgers' favorite target? Michael Pittman Jr. debut. Things to watch in Steelers opener

Ahead of the Pittsburgh Steelers' upcoming season opener, key storylines are beginning to emerge. Questions linger regarding which pass-catcher will establish chemistry as quarterback Aaron Rodgers' primary option in the passing game.

Additionally, the debut of wide receiver Michael Pittman Jr. serves as another pivotal development to track as the Steelers prepare to kick off their campaign.