The Legion of Boom (LOB) was the Seattle Seahawks secondary in the early 2010s. The original group that was nicknamed the Legion of Boom consisted of the starters in the Seahawks defensive backfield : Richard Sherman, Earl Thomas, Kam Chancellor, Brandon Browner, Walter Thurmond and Byron Maxwell.

Richard Kevin Sherman is an American former football cornerback who played 11 seasons in the National Football League (NFL). Sherman played college football for the Stanford Cardinal, beginning his career as a wide receiver before moving to cornerback as a junior. He was selected by the Seattle Seahawks in the fifth round of the 2011 NFL draft. He was selected to the Pro Bowl five times and voted All-Pro five times, including three times to the first team, and led the NFL in interceptions in 2013, when he also helped the Seahawks win their first Super Bowl. Sherman is regarded as one of the greatest cornerbacks of all time.