Mark Kastelic Fights Michael Kesselring in Boston
The Boston Bruins forward engaged the San Jose Sharks defenseman following a boarding penalty.
Updated on Oct. 25, 2026 in Hockey

Boston Bruins forward Mark Kastelic and San Jose Sharks defenseman Michael Kesselring dropped the gloves during their recent game at TD Garden. The altercation followed a boarding hit delivered by Kastelic behind the goal line.
Why it matters
The confrontation intensified the physical nature of the contest as the Sharks sought retaliation for the hit on Kesselring. This physical play forced the Bruins to defend a significant power play period.
Mark Kastelic stands 6-foot-4 and 231 pounds, while Michael Kesselring measures 6-foot-5 and 215 pounds. Both players received 5-minute fighting penalties, with Kastelic additionally serving a 2-minute minor for boarding.
The players
Mark Kastelic
He is a Boston Bruins forward known for his physicality on the ice.
Michael Kesselring
He is a defenseman for the San Jose Sharks who engaged in the fight.
The details
The incident unfolded in the second period when Kastelic hit Kesselring into the boards behind the goal line, prompting Kesselring to challenge him. The two exchanged punches until Kastelic secured a takedown to end the fight.
Timeline
October 24, 2026: The game between the Bruins and Sharks took place.
Season Trajectory
This physical confrontation highlights the Bruins efforts to establish an aggressive identity early in the season. Such penalties force the team to test their penalty-killing units, which plays a critical role in their standing within the division.
The Bruins penalty-killing unit successfully negated the Sharks power play following the boarding call. Fantasy managers should note the uptick in penalty minutes for both skaters involved in the altercation.
The takeaway
Players often engage in physical retaliation following high-impact hits to discourage further aggression against teammates. Fans should monitor roster shifts if injuries occur during these intense, in-game altercations.
Further reading
For more on local ice matchups, visit the Hockey section.
Source note: This article includes information reported by Masslive.










