Getty Former Pittsburgh Steelers offensive tackle Zach Banner announced his retirement from the NFL on Sunday. Offensive tackle Zach Banner played his final NFL game with the Pittsburgh Steelers almost five years ago. That will remain his last contest in the league. Banner announced on his podcast Sunday he will end his NFL comeback bid and retire from football. “For those new to my podcast, thank you for joining. This type of tempo and lack of enthusiasm and pondering every single thought is