Kastelic scored a goal, added two hits and blocked two shots in Thursday's 6-2 win over the Penguins.
Kastelic's goal at 15:04 of the first period put the Bruins ahead 2-1, and they didn't look back. The 27-year-old has added a little depth offense from the fourth line, but it's his grit that keeps him in the lineup. Kastelic has three goals, four assists, 20 shots on net, 34 hits, 16 blocked shots, 19 PIM and a plus-3 rating over 17 outings.