Rangers fall to lowly Senators, 6-2

That’s the thing with young teams, and it’s something Rangers coach David Quinn has said over and over: They’re going to be up and down.

And after a Saturday where they left the arena feeling really, really good about themselves, things didn’t go nearly as well Monday night.

Playing against the lowly Ottawa Senators, which entered the game with the worst record in the 31-team NHL, the Rangers were simply dreadful Monday night, dropping an ugly 6-2 decision to the Senators that snapped their two-game winning streak and dropped their record to 5-6-1.

Playing their third straight game without No. 1 center Mika Zibanejad – who skated in the morning and continues to get closer and closer to a…