Krug was back alongside longtime partner Adam McQuaid during Saturday's session and has not been ruled for Monday's matinee against Colorado. Bruins head coach Bruce Cassidy said that if Krug gets through Sunday's practice, the blue liner could be a game-time decision.
"As long as I feel comfortable it's OK," said Krug. "We'll see how the weekend goes. First day of practice, there wasn't much contact, I tried to force some contact to see how it felt, but we'll see how [Sunday] goes and play it by ear.
"[It's] just about getting timing back and getting some courage in the corners to get hit again and things like that. Shouldn't be an issue once I get up to speed. But I feel pretty good right now."
Being back on the ice was a far better feeling for Krug than having to watch the B's Opening Night win from the press box.
"It's tough sitting up in the stands, even when your team's winning, you want to be a part of it, you want to help contribute," said Krug. "Obviously you see the excitement, you see the pace that we were playing with and the speed of the young guys and you can't forget the guys that have been here the whole time putting in the work. They look good as well. I just want to get back in there and help."
Krug, who is still drinking all of his food, has been donning a clear cage on his helmet and will be for the foreseeable future.
"Used to it now for sure," said Krug. "Like I said the other day, it doesn't matter if I'm used to it or not. I've had plenty of skates to get used to it and get comfortable."