WASHINGTON — Igor Shesterkin brushed off an early soft goal with an outstanding 27-save performance and Vincent Trocheck continued his stupendous postseason by scoring a power-play goal and assisting on Barclay Goodrow’s eventual short-handed game-winner as the Presidents’ Trophy-winning New York Rangers moved a win from advancing to the second round of the playoffs thanks to a dominant special teams’ effort. After John Carlson’s knuckler beat Shesterkin, the always-money Chris Kreider responded just 34 seconds later and the Rangers skated to a 3-1, Game 3 victory over the Capitals to take a 3-0 series stranglehold thanks to a 6 for...