Steelers safety Troy Polamalu retires
Troy Polamalu - A Retirement Tribute
Steelers safety Troy Polamalu retires after 12-year career
Troy Polamalu retires from NFL
Retiring safety Troy Polamalu was the most important Steeler of the last decade
Steelers safety Troy Polamalu retires
Former Syracuse star Shamarko Thomas ready to step in for Steelers, Troy Polamalu
Report: Pittsburgh Steelers and Troy Polamalu could part ways in 2015
Steelers Safety Troy Polamalu To Retire From The NFL - Cincy Jungle