The NHL's top defensemen are being put to the test, and the rankings are in. In the latest installment of their annual "Top 20 Defensemen" series, NHL.com is counting down the league's best blueliners, and today we're taking a look at spots #10-8. From stalwart shutdown defenders to explosive playmakers, these ten players are making their mark on the game. With their unique combination of skill, speed, and physicality, they're helping their teams compete for Stanley Cup glory, and their individual performances are being closely watched by fans and scouts alike. Who's among the top eight defensemen in the league, and where do these players fit in the rankings?