Washington Capitals (39-29-9, in the Metropolitan Division) vs. New York Rangers (32-36-9, in the Metropolitan Division) New York; Sunday, 7 p.m. EDT BETMGM SPORTSBOOK LINE: Capitals -115, Rangers -105; over/under is 6 BOTTOM LINE: The New York Rangers host the Washington Capitals after Gabriel Perreault’s hat trick against the Detroit Red Wings in the Rangers’…