BOSTON (AP) — Marcus Smart brought the energy boost the Celtics needed to ignite a blowout win in Game 2 of their Eastern Conference finals matchup with the Heat. Now armed with home-court advantage in the series, Boston will look to maintain its edge at TD Garden during Saturday's Game 3, where it will be opposite a Miami team that is dealing with new health concerns. A chance to lead a series is a welcome change in position for Boston, which had to play catch-up throughout its second-round series with Milwaukee before rallying to win Games 6 and 7.