There's a definite sense that Game 4 of the Western Hockey League playoffs between the Spokane Chiefs and Tri-City Americans could be a tipping point. After tonight's game at Kennewick's Toyota Center the Chiefs will either hold a 3-1 lead in the best-of-seven series or the Americans will add to the momentum from their Game 3 victory and tie the series. The teams have just begun warming up on the ice. The weather in the Tri-Cities was anything but winterlike today, with temperatures in the high 60s. Tri-City will again start Luke Lee-Knight in goal after he stopped the Chiefs for 44 consecutive minutes Tuesday night during the second and third periods and overtime. Eric Williams will start in goal for the Chiefs, as he did for the previous three games.