As another positive, there is zero chance of Marchand taking one of our guys out at the knees, or Lucic blasting Anderson, since we aren't playing the Bruins. The Rangers are much less dirty than Boston, so we're less likely to see a Sens player getting injured.
That's number 4, IMO.
Bruins aren't a dirty team. Just physical team.
You could be in for a surprise when you see Callahan and crew.