Double O Jim Otto is still alive at 84 years old! From wikipedia: Otto's body was punished greatly during his NFL career, resulting in nearly 74 operations, including 28 on his knee (nine of them during his playing career) and multiple joint replacements. His joints became riddled with arthritis, and he developed debilitating back and neck problems. In his book, "The Pain of Glory" Otto described near-death experiences from medical procedures, including fighting off three life-threatening infections due to complications from his artificial joints. During one six-month stretch, he was without a right knee joint because he had to wait for an infection to heal before another artificial knee could be implanted. Otto eventually had to have his right leg amputated on August 1, 2007. Despite his maladies, Otto says he has no regrets and wouldn't change a thing even if given the opportunity to do it over again.