Brassard joined his teammates for the full-contact practice session, but he remained listed as day-to-day.
The Penguins acquired Brassard from the Senators as part of a three-team deal with the Vegas Golden Knights in February.
Brassard, 31, has missed the last nine games since suffering a lower-body injury on Oct. 25 against the Calgary Flames.
The Penguins, currently in next-to-last place in the Eastern Conference at 7-7-3, have gone 2-6-1 without Brassard in the lineup.
The losses have him itching to return.
"If you're winning, I think it makes it a lot easier for when you're out," Brassard said, per NHL.com. "You just want to be out there and try to help out. ... Guys battle hard and I think we're really close. We probably had like two bad games in that bad stretch. I think a little bit of adversity for this team, it's not going to be bad."
Brassard's return could be coming just in time for the Penguins.
--Field Level Media