The Blackhawks' power play struggles have been well-documented. They finished tied for third-worst last season with a 16.0 percent conversion rate.

To help change their fortunes in that department, the Blackhawks switched to a 1-3-1 formation to emulate what worked so well for the defending Stanley Cup champion Washington Capitals.

The results haven't paid off yet. The Blackhawks have had 10 power-play opportunities through three games and haven't been able to cash in on any of them.

"We've got to get that power play going," Patrick Kane said after Tuesday's practice. "It's a work in progress for sure, I think we're 0-for-10 right now, so it'd be nice to just kind of settle it down, get some puck possession, get moving around, get some shots, keep the momentum in the game. It's still early on in the season, but that was one of our goals this season, to improve the power play and be able to produce in that regard, especially with the way we're producing 5-on-5, you'd think we'd be able to come over to the power play.

"Worked on it pretty good today, thought it was moving around pretty good so we've got to put that in our game situation now and be able to have that be an effective part of our team game, is being good on the power play and special teams, so hopefully we can improve on that for sure."

Henri Jokiharju was promoted to the top unit while Brent Seabrook was removed from it entirely. The four forwards stayed the same with Alex DeBrincat, Kane, Nick Schmaltz and Jonathan Toews, but it was DeBrincat that was in the slot and Schmaltz at the left faceoff circle. A little swap in places

On the second unit, Erik Gustafsson was running the point while Duncan Keith was in the slot, Dominik Kahun was at the left faceoff circle, Brandon Saad on the right and Artem Anisimov in front of the net.