Nathan MacKinnon scored twice. Connor McDavid had a goal and an assist. Sidney Crosby flipped in an empty-netter from center ice after Finland cut a four-goal deficit to one in the final minutes.Canada’s best players came through in the 4 Nations Face-Off on Monday to earn a rematch of their fight-filled preliminary bout with the United States. The rivals will meet in the tournament final.Video above: NHL creates 4 Nations Face-Off Fan Village in Boston ahead of games“That’s what you need: big plays from big-time players,” Crosby said after the 5-3 victory over Finland. “These guys are used to playing in these big games under the spotlight and delivering. They did again tonight.”Canada and the United States will play on Thursday night in a sequel to a round-robin game in Montreal last week that started with three fights and ended with the Americans celebrating a 3-1 victory. Canadian forward — …