Ex-Steelers star says Ben Roethlisberger should retire or he'll set the franchise back 'two or three' years
Roethlisberger retires at 39: Time to 'hang up my cleats'
Ben Roethlisberger - Wikipedia
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Ben Roethlisberger: Pittsburgh Steelers' two-time Super Bowl winner announces retirement - BBC Sport
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Ben Roethlisberger announces retirement
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Steelers QB Ben Roethlisberger retires from football
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