Brad MarchandWILMINGTON, Mass. — Injury concerns keep adding up for the Boston Bruins.

Brad Marchand left Bruins practice early Wednesday with an undisclosed ailment. Earlier in the day, the team announced that defenseman Torey Krug would miss two to three weeks with a broken finger.

Bruins head coach Claude Julien said Marchand “tweaked something” and hopes the 26-year-old winger will be able to play Thursday night against the Sabres in Buffalo.

Marchand didn’t miss any regular-season games in 2013-14 and has never missed more than six games in a single campaign.

Marchand was skating on the third line alongside Carl Soderberg and Loui Eriksson before he left practice Wednesday.

It’s been a tough start to the 2014-15 season for Marchand. He has scored just one goal (on the power play) with two assists in 11 games.