It seems every year during training camp multiple players get injured and fans end up asking themselves the same questions over and over again. Did the players not report to camp in peak condition? Are the practices too physical? Are their bodies simply not tough enough to handle the rigors and physicality of NFL competition?
In a game as physical and grueling as professional football, there are always going to be injuries. That's just the nature of the sport. There's not much someone can do to prevent certain injuries from occurring (i.e. taking a helmet to the knee and tearing an ACL).