Vatanen, who had 24 points (three goals, 21 assists) in 71 regular-season games, participated in the morning skate after being a late scratch for Game 2 because of an upper-body injury.
"I thought he looked pretty well," coach Randy Carlyle said of his 25-year-old defenseman "We'll have a conversation with the training staff and we'll see where he's at. We're not going to put people in situations that they cannot have success at.
"Ultimately, it'll be the player's decision whether he's ready to play or not, because we know it's going to be physical, we know it's going to be ruckus. All those things are things we take into consideration before we even put the question to the player."