A few years ago, the 49ers lined up one of the best linebacking duos that the NFL had ever seen. NaVorro Bowman and Patrick Willis were patrolling the field at Candlestick Park on one of the best defenses the 49ers had produced. Bowman and Willis had little weakness in their games and they complimented each other very well. Unfortunately the duo did not have a long run. Patrick retired in 2015 after dealing with his toe injury that hampered his ability to play at the highest level. NaVorro was let go by the 49ers during the 2017 season after his own injuries and spent some time with the Raiders, but it was short lived.