Amadio, a 2013 third-round draft pick playing just his 11th NHL game, netted the tying goal and had a hand in the game-winning tally late in the second period at Staples Center.
Quick stopped 21 shots.
With a 2-0 deficit just over seven minutes into the game, the Kings hardly looked like a squad ready to win for the first time since Jan. 2, but they roared back with three power-play goals in the second period.
Jake Muzzin started the comeback just 30 seconds into the middle frame with a long blast that beat screened Rangers goalie Henrik Lundqvist. Then Amadio evened the score by burying a shot from the slot at 6:13, an opportunity created by an errant clearing attempt seconds earlier by New York defenseman Marc Staal.
Tanner Pearson put the Kings ahead at 10:22 with another old-school man-advantage marker, first by being right in front of Lundqvist when Alec Martinez unloaded a shot from the point, then by deflecting the puck past the netminder.
Trevor Lewis added an empty-net goal with 18 seconds left in the game to cap the scoring.
Martinez and Drew Doughty each collected a pair of assists for the Kings, who were second in the Pacific Division before their slump but now sit tied for third.
The Rangers went into the night with a 7-2-0 record against Pacific Division squads, and they were poised to build on it after the first frame.
David Desharnais opened the scoring at 3:53 when his cross-crease pass went off the skate of Kings defender Derek Forbert and through the legs of a startled Quick. Then Jimmy Vesey was rewarded for his effort to get a stick on the loose puck and banged home a rebound to double the edge at 7:12.
Lundqvist made 26 saves in the loss for the Rangers, who have dropped the first two games of a four-game road swing.
--Field Level Media
NY Rangers | Los Angeles | |
David Desharnais 1 | Points | Michael Amadio 2 |
David Desharnais 1 | Goals | Michael Amadio 1 |
Tony DeAngelo 1 | Assists | Drew Doughty 2 |
David Desharnais 1 | Power Play Goals | Michael Amadio 1 |
N/A | Short Handed Goals | N/A |
Henrik Lundqvist .897 | Save Percentage | Jonathan Quick .913 |
Henrik Lundqvist 26 | Saves | Jonathan Quick 21 |
Team | Shots | Goals | Power Play | Penalty Kill | Penalty Mins | Face Offs Won |
NY Rangers | 23 | 2 | 1-4 | 0-3 | 21 | 26 |
Los Angeles | 30 | 4 | 3-3 | 3-4 | 23 | 27 |