The Bruins had another new participant in practice Monday morning (VIDEO)

Just like Marchand had surgery on both hips, defenseman Charlie McAvoy underwent surgery on an injured shoulder this summer. McAvoy was a participant for the first time at the B's morning skate, but unlike Marchand, he was in a non-contact (maroon) sweater.

By the way things are looking early on; it wouldn't be a surprise to see McAvoy the last one to return for the Bruins. Matthew Grzelcyk is officially day-to-day, and Marchand looks ahead of schedule.

Check it out below, as McAvoy appears to be ramping things up a bit: