Understanding how a dispute between the NHL and the players' union could jeopardize the 2012-13 season requires a basic knowledge of the league's "salary cap" pay structure. Here's a quick primer.
An explanation of what the players want and what they already have
Matt Kwong was the Washington-based correspondent for CBC News. He previously reported for CBC News as an online journalist in New York and Toronto. You can follow him on Twitter at: @matt_kwong