Paille, 25, has one assist in two games with the Sabres this season. He was Buffalo's first-round pick in the 2002 Entry Draft and has 35 goals and 77 points in 182 NHL games, all with the Sabres. His best season was 2007-08, when he scored 19 goals and added 16 assists for 35 points in 77 games. He followed that by going 12-16-28 in 73 games last season.
If Paille scores 16 or more goals during the 2009-10 regular season, Boston will transfer its own fourth-round selection in the 2010 draft or Carolina's fourth-rounder, acquired in a previous deal. Boston will have to determine which selection it is transferring prior to the beginning of the second round.