NHL Fines Bruins' Nikita Zadorov $5,000 for Roughing Blackhawks' Alex Vlasic

• The NHL fined Boston Bruins defenseman Nikita Zadorov $5,000 for roughing Chicago Blackhawks defenseman Alex Vlasic.
• The fine is the maximum allowable under the NHL's collective bargaining agreement.
• The incident occurred during a game between the Bruins and the Blackhawks on Sunday.
• The Bruins defeated the Blackhawks 5-4 in overtime.
• Fans expressed surprise and questioned the decision on social media.