Before Wednesday night, Game 5s had been a house of horrors at TD Garden in recent years for the Celtics. The team dropped two of their three contests last postseason on the Garden parquet and went 0-2 at home in Game 5s during their NBA Finals run. The shorthanded Heat came into the Garden in Game 5 facing a 3-1 hole as heavy underdogs but recent letdowns still cast a shadow over this group. Would they be able to take care of business promptly to get some extra rest for the long playoff grind?
With Kristaps Porzingis out of the lineup with a calf strain, tweaks were inevitable for Joe Mazzulla’s rotation. Luke Kornet entered the fold at center with Al Horford’s promotion to the starting five. Yet, Mazzulla and the coaching staff did more to ensure there would be no repeat of recent Game 5 letdowns.
A 41-point scoring …