This is the Norris Trophy, better known in recent years as the Nicklas Lidstrom Trophy. Since 1954 the NHL has handed out the award to the league's best defenseman.
This year the award will go to either Lidstrom (looking for his 7th straight title), Zdeno Chara or Mike Green, as announced by the NHL today.
Lidstrom certainly has enjoyed domination of the trophy this decade. Repeat winners are common though. The award has been handed out 53 times, to only 21 different players.
The most famous multiple winners are Doug Harvey (7), Bobby Orr (8), Ray Bourque (5) and Lidstrom.
Boston has certainly enjoyed a lot of great defensemen over the years - Orr and Bourque, with Chara likely to win a Norris soon. Eddie Shore and Dit Clapper pre-dated the award.
Here's a look at the award's breakdown by team:
13 - Boston Bruins
12 - Montreal Canadiens
7 - Detroit Red Wings
6 - Chicago Blackhawks
4 - New York Rangers
3 - New York Islanders
2 - Washington Capitals
2 - Edmonton Oilers
2 - St. Louis Blues
1 - Pittsburgh Penguins
1 - New Jersey Devils