A talented playmaker, he had three 100-point seasons, twice led the league in assists, and played in eight NHL All-Star Games. He was also a great defensive player, a great checker, and one of the best in the face-off circle. One of the game's great leaders, Clarke was the captain of the notorious Broad Street Bullies during their heyday in the mid-1970s. The Bullies were a reflection of their captain, who had a tireless work ethic and a strong will to win even if it meant breaking the rules. The latter, some say, is exemplified best by Clarke's infamous slash to the ankle of Valeri Kharlamov during the Summit Series in 1972, which is still a source of controversy to the present day.