Boston Bruins captain Zdeno Chara left Wednesday's game against the Colorado Avalanche with a lower-body injury and will not return, the team announced.
Chara's left knee took a noticeably awkward jolt as he attempted to check Carl Soderberg.
The 41-year-old blue-liner entered Wednesday with four points in 17 games while averaging a team-high 22:27 per night.
The Bruins are already without four defensemen - Charlie McAvoy (concussion), Brandon Carlo (upper body), Kevan Miller (hand), and Urho Vaakanainen (concussion).