Derrick White’s tiebreaking 3-pointer with 43 seconds left gave Boston the lead and the Celtics closed out a four-game sweep of the Indiana Pacers 105-102 to reach the NBA Finals for the second time in three years. White finished with 16 points and only two 3s in the game. Jaylen Brown led Boston with 29 points while Jayson Tatum added 26 points. Indiana, which again played without two-time All-Star Tyrese Haliburton, lost its second straight at home — both in the final minute after giving up leads. Andrew Nembhard had 24 points, 10 assists and six rebounds but missed a potentially tying 3-pointer in the closing seconds and the Pacers never go the ball again.