This first book of a 2 part series on the art of defending in soccer covers tactical defense from 1v1 through 8v8 situations. Defending concepts covered include pressure and support, zone and man marking, recovery, the guiding triangle, cover/balance, double and triple teaming, tracking and compactness. Using the small-sided game model along with functional practices, Harrison teaches the concepts clearly and stresses the importance of defense at every position, including the strikers.