MacLellan, though, said the Capitals need Wilson to be out there playing a physical power forward game for them, which means he's going to have to find the right balance in his style of play immediately.
Wilson (6-foot-4, 218 pounds) is eighth in the NHL in hits (1,144) since 2013-14, his rookie season. He had the fourth-most hits (489) in the previous two seasons. He had NHL career highs last season in goals (14), assists (21), points (35), shots on goal (123) and penalty minutes (187).
He plays on Washington's top line with Evgeny Kuznetsov and Alex Ovechkin.
"He's effective for his linemates, for the team, playing physical," MacLellan said. "He's had, I don't know what it is, 1,100 hits and he's got two head shots suspensions. It's a lot, but he still needs to play physical but he's going to have to pass up a few of the hits.
"I think he's become extremely aware of how they're looking at it."
Wilson's teammates seem to be aware that there might be an adjustment period for him.
"I imagine [it would be] a little uncomfortable if someone came up to me and told me I had to change the way I played," forward T.J. Oshie said. "He's a mature kid. He's a smart kid and I think he'll find other ways to be successful, but we still expect him to be the same physical player. He's a presence on the ice and we can't lose that in these games."
NHL.com correspondent Jessi Pierce contributed to this story.