Watch: Mark Kastelic exchanges heavy blows with Emil Lilleberg in spirited fight

Boston Bruins forward Mark Kastelic dropped the gloves with Tampa Bay Lightning defenseman Emil Lilleberg during Thursday's matchup.

The altercation happened with the Bruins trailing 4-1 and less than ten seconds remaining in the game. Kastelic went after Lilleberg, and the two traded heavy shots, resulting in a spirited bout.

After taking some right-handed shots from Mark Kastelic, Lillberg found his rhythm in the bout and responded by landing some punches back at the Bruins forward. Eventually, he took Kastelic down, and the two were separated by the officials.

Watch the video here:

Both players were subsequently hit with a five-minute major penalty for fighting against each other. Meanwhile, the Bruins lost their sixth straight game as a result of a 4-1 defeat to the Lightning.