Former NFL wide receiver and return specialist Theo Bell, whose 10-year career in the league included a pair of Super Bowl victories with the Steelers, died Wednesday at age 52 after a long battle with kidney disease. Bell was diagnosed in 2000 with polycystic kidney disease, a condition in which cysts attack the kidneys. More recently he also suffered from scleroderma, a disease which causes a hardening of the skin and damage to internal organs. The scleroderma had severely damaged Bell's lungs.