Kopitar gave the Kings the lead with 1:21 left in the second. Justin Williams slipped a pass to Kopitar cutting toward the net in the slot, and he deked to his right. San Jose goaltender Antti Niemi was completely faked out by the move, and Kopitar calmly flipped a backhanded shot in the net for his fourth goal of the series.
The Kings became the fourth team in NHL history to win a Stanley Cup Playoff series after losing the first three games, joining the Toronto Maple Leafs in 1942, New York Islanders in 1975 and Philadelphia Flyers in 2010. Mike Richards and Jeff Carter, who were members of that Flyers team, became the first players to do it twice.
The Kings will face their Southern California rivals, the Anaheim Ducks, in a Western Conference Second Round series.