Boston Celtics defeat Atlanta Hawks, 103-102

If the script this season calls for comebacks, the Celtics are playing their roles to the hilt.

Paul Pierce was the protagonist again last night, this time in the most dramatic last-second fashion.

For the second time in three days, Pierce (34 points) bailed out the Celtics in the final quarter, his jumper over Al Horford with 0.5 seconds on the clock providing the difference in a 103-102 win over Atlanta in a showdown of Eastern Conference leaders.

As in Monday's...