Krug uncharacteristically led his team with five blocked shots as the Bruins fell to the Avalanche 6-3 on Wednesday.
Krug matched-up against Darren Archibald for his eight career fight during the waning minutes of an 8-5 loss to the Canucks on Thursday.
Krug collected a secondary assist on the overtime game-winner during Monday's 2-1 victory over the Stars.
Krug picked up an assist in his 2018-19 debut against the Hurricanes on Tuesday.
Krug (ankle) has officially been activated from injured reserve, per the NHL's official media site. Bruins coach Bruce Cassidy confirmed the defenseman will be making his season debut against the Hurricanes on Tuesday.
Krug (ankle) will likely be activated from injured reserve for Tuesday's game versus the Hurricanes, Matt Porter of The Boston Globe reports.
Krug (ankle) is close to returning, but it won't happen Saturday against the Canadiens, per Bruins coach Bruce Cassidy.
Per coach Bruce Cassidy, "there's a chance" Krug (ankle) will play Saturday against Montreal.
Krug (ankle) won't play Thursday against Philadelphia and is a "stretch" for Saturday's clash with Montreal, according to coach Bruce Cassidy.
Krug (ankle) is progressing well and could resume skating this week.