The past few years have seen a growing trend in the National Football League with players retiring earlier than usual. With more information in regards to head injuries and the long-term effects, is the NFL brand in trouble? How many more cases like thoseĀ of Patrick Willis and Calvin Johnson can we expect to see? Be sure to check out the 300lbsofsportsknowledge Show this Friday night at 8:30PM Eastern/5:30PM Pacific as I will be discussing this.