Elias Lindholm injury news and a Pavel Zacha injury scare leave the Boston Bruins waiting on Marco Sturm’s Friday update.

Boston entered Thursday night already missing Lindholm, and it felt like the middle of the ice was one more hit away from chaos.

Lindholm left Tuesday’s overtime win with an upper-body injury, and the club immediately talked about testing to get a clearer read.

That absence already had Boston juggling matchups, faceoffs, and who starts shifts against top lines.

Then the Flyers game added more stress. Zacha exited in the second period with an upper-body injury and did not return.

Boston still finished the job in a 6-3 win, but the postgame mood shifted fast from goals to medical news.

After the game, Sturm said he did not have an immediate update, and that a clearer picture on Lindholm and Zacha would come after Friday’s practice.

That matters, because “upper-body” can mean anything from a bruise you shake off to something that lingers through the break.

Pavel Zacha update could swing the Boston Bruins

Bruins fans know this feeling, the win is nice, but you still wake up scanning for who is missing at the next skate.

Zacha has been a real top-six driver this season, sitting at 15-22-37 through 54 games, and Boston leaned on his pace when the puck started flying Thursday.

Lindholm has quietly been on a heater lately, with six goals and 14 points over Boston’s last 14 games before the injury popped up.

If both centers miss time, it is not just line combinations, it is penalty kill rotations and who takes the tough defensive draws when the game tightens.

Boston did push Matt Poitras into bigger minutes once Zacha went down, and you can feel how quickly the dominoes fall when a top center disappears.

The timing is brutal, too. The Bruins are 32-20-3 and heading into Sunday’s Stadium Series matchup against the Tampa Bay Lightning, with no room for guesswork down the middle.

Friday’s update will either calm everyone down or crank the pressure up for an already weird, outdoor weekend.