There will be a glaring difference for the Chicago Blackhawks between being one win away from the Stanley Cup Final and tied with the Los Angeles Kings coming back to Chicago.

And the Hawks will wend their way to one scenario or the other without their best defenseman, Duncan Keith, who was suspended for Game 4 at Staples Center on Thursday.

"We know what this game means for us," winger Marian Hossa said. "We could get ourselves to great position coming back home. We need to be ready. We need to bring our best. We need to not worry about the result, but if you bring the best, I'm sure the result will be there."

The result remained in doubt for a while in a back and forth affair. But it was Hossa that rocketed in a third-period score that held up as the game-winner in a 3-2 victory over the Kings that opened up a 3-1 series lead in the Western Conference finals.

The Hawks can give themselves a chance at another Cup in Game 5 on Saturday at the United Center.

Just after the Kings killed off a power play that carried over from the second period, a bad line change sprung Hossa and Michal Handzus. Handzus dropped a pass that Hossa absolutely smashed, sending a screaming one-timer in for the 3-2 lead at the 1:10 mark.

Dustin Penner took an advantage of a Corey Crawford gaffe for a Kings go-ahead goal, but Patrick Kane poked in a loose puck for an equalizing score that made it 2-2 after two periods.

After Bryan Bickell tied the game for the Hawks in the first, Crawford's indecisiveness near the net led to the Penner goal and a 2-1 Kings lead.