When is the NHL lockout over?

The NHL is in the final stages of a lockout that began earlier this year and has stretched to this week.Here are some things you need to know:The NHLPA announced on Thursday that it has agreed to a tentative two-year extension to the two-and-a-half-year contract extension the union had agreed to with the NHL in late February.The NHLPA has until Sept. 30 to reach an agreement with the union on a...