-Getty Images Last week, Seattle Seahawks cornerback Richard Sherman was injured in an ugly Thursday Night Football game against the Arizona Cardinals. My friend Nate and I watched the game at a little sports bar in West Seattle and saw the play and the injury. The visual of my hero crumpled on the field was upsetting. A chill ran through me, but I still held out hope that the injury was not significant. However, as I was driving home that night…