I understand why Andrew Luck retired, because I've been in his shoes

Brian Spurlock-USA TODAY Sports Retired NFL lineman Geoff Schwartz describes just how awful it feels to go through the rigors of constant rehab. Andrew Luck, the Indianapolis Colts' franchise quarterback and 2012 first overall pick, abruptly retired from the NFL due to the mental and physical toll that injuries have taken on him in his career. There are no words that can describe the feeling of shock around the NFL world when we saw this news. I'm still in awe that I'm writing this. When the sto...