HEAT STILL LEAD EAST FINALS, BUT CELTICS ROARING BACK WITH EYE ON HISTORY

Maybe Kevin Garnett was right. Maybe, as he screamed in celebration of Boston's 2008 NBA championship, anything truly is possible. Even the impossible. The Celtics are halfway to history, and that alone has gotten them entry into a very small club. Of the first 150 teams that trailed a best-of-seven series 3-0 in NBA history, just 14 ―