Still, getting their leader back has to be an emotional lift for the Red Wings, who trail the series 2-1 after dropping the last two games and getting outscored 7-1 in the process.
Zetterberg skated on a line with Pavel Datsyuk and Justin Abdelkader during Thursday’s morning skate. He didn't speak with the media afterward.
The Wings said Zetterberg was to meet with a doctor after the skate and will be a game-time decision.
Zetterberg didn't rule out playing in Game 4 when asked about it Wednesday afternoon.
"What I've gone through, I'm ahead of pace and there's a reason for that," he said after Wednesday's practice. "If there weren't any playoffs or if we were going to the first day of training camp, I wouldn't be doing the stuff that I'm doing now.
"We want to rush it, but we want to do it at a safe pace. As soon as I can get in, I will."
Zetterberg had 48 points in 45 games for the Wings this season before a nagging back injury sidelined him after playing just one game for Team Sweden in the Sochi Olympics. He underwent back surgery Feb. 21.