The Kings rallied from a two-goal deficit after the second period to defeat the Chicago Blackhawks in overtime 3-2 on Saturday at Staples Center, ending the defending Stanley Cup champions’ run of 42 consecutive wins when leading after 40 minutes. The Blackhawks’ last loss when leading after two periods? Game 7 of the Western Conference final in 2014, when the Kings rallied in the third to force overtime and then won on Alec Martinez’s overtime goal.