As the fans we should know that football is the most grueling, physically sports. Justin Smith was dealing with shoulder injury since two-three seasons ago. We will be right, 49ers are built for longevity and situations like this. A lot of people are doubting the 49ers because we lost a lot of players (Free Agency and retiring). Justin Smith is 35 years old, he’s not young like he used to be. We got to accept and congratulate him on retirement. God speed and good luck into future endeavors, Cowboy! – Brent Holley