The award is handed out annually to the NHL's top defenceman.
Chara averaged a team-high 24:39 of ice time per game for the Bruins who allowed the second-fewest goals against in the NHL (177). He was top 10 among NHL blueliners in goals (17), plus-minus (+25), power-play goals (10) and game-winning goals (3). Chara is a Norris Trophy finalist for the third time in the past four seasons, and sixth time overall. He won the Norris in 2008-09.
Keith led all defencemen with 55 assists and ranked second with 61 points. He led the Hawks with an average of 24:38 per game. This is his second time as a Norris Trophy finalist, capturing the award in 2009-10.
Weber topped all NHL rearguards with 23 goals, leading the Predators in scoring for the second consecutive season. He also topped all defencemen in power-play goals (12), and ranked fourth in the League in average ice-time (26:54). He is a Norris finalist for the third time after finishing as runner-up for the award in both 2010-11 and 2011-12.