Stanley Cup Playoffs: Tuesday's Need To Know

Tuesday night's NHL playoff action features four crucial Game 4s, including a renewed rivalry between the Habs and Sens, and a do-or-die tilt for Cory Schneider and the Canucks in San Jose.

Get up to speed before the pucks drops

Habs coach Michel Therrien, left, and Sens coach Paul MacLean, centre, have engaged in a war of words with one another, while Canucks goalies Cory Schneider and Roberto Luongo, right, have taken turns in the Vancouver crease. (Photos courtesy The Canadian Press)

Tuesday night's NHL playoff action features four crucial Game 4s, including a do-or-die tilt for one Canadian team facing elimination.

Here's a list of things you need to know, which we'll update throughout the day: