2013 Los Angeles Kings
The Kings' defense of their first Stanley Cup ended in the Western Conference Finals, where they fell to eventual champion Chicago in five games. By that point, the Kings, who had steamrolled to the title in 2012, looked worn out after battling through tough series vs. St. Louis and San Jose. They struggled to score as Dustin Brown, Jarret Stoll and Mike Richards fought injuries and star center Anze Kopitar slumped. Goaltender Jonathan Quick wasn't nearly as sharp as he was when he won the 2012 Conn Smythe Trophy. And so the Detroit Red Wings remained the last team to repeat as Cup champions (1997, '98).