What is the most disappointing career in NFL history? - Quora
Sam Shields: Not Bad for an Undrafted Rookie Free Agent
What is the most disappointing career in NFL history? - Quora
Former Green Bay Packers DB Sam Shields discusses concussion battle
Green Bay Packers cornerback Sam Shields (37) had to be separated
Ex-Pro Bowl CB Sam Shields says concussions left his head 'all
Preseason Week 3 at Steelers.indd - Atlanta Falcons Media Guide
Ex-Packers DB Sam Shields Has Shocking Regret About His NFL
Rams sign CB Sam Shields: No signing bonus or guaranteed money