UPDATE (6:50 p.m.) Sammy Blais is listed as a late scratch. Mackenzie MacEachern will take Blais' spot on the fourth line with Kyle Clifford and Jacob de la Rose.
Blues Head Coach Craig Berube said his team was too tight and squeezing their sticks too much after Saturday's 3-1 loss to the Arizona Coyotes.
So for Monday's game, Berube is trying to loosen things up by making some significant line changes.
For starters, Ivan Barbashev has been moved up to the first line with Ryan O'Reilly and David Perron.
"(Barbashev can) get in there on the forecheck, be physical. I think that line needs that right now," Berube said. "That's what we've talked to 'Barbie' about, that's what we're looking for. We've got a heavy guy on every line, a guy that forechecks and gets in there."
"I think it's great for him," Perron said of playing with Barbashev. "He's a guy that when he plays his best, he gets in on the forecheck, he's aggressive, physical and can make plays. He's got a lot more offense than people give him credit for. We see it in practice, we've seen it in games before and hopefully it's the start of a little bit of chemistry with him and we can get rolling."
Zach Sanford is back in the lineup after missing one game with the flu, and he was skating with Oskar Sundqvist and Mike Hoffman in Monday's morning skate. Kyle Clifford is back on the fourth line after being a late scratch on Saturday. Jacob de la Rose, who will be making his first appearance of the season, is expected to center Clifford and Sammy Blais.
Defensively, Robert Bortuzzo looks to be making his return to the lineup after missing 10 games with an upper-body injury. Bortuzzo was skating in Carl Gunnarsson's spot alongside Niko Mikkola on Monday.
Barbashev - O'Reilly - Perron
Schwartz - Schenn - Kyrou
Sanford - Sundqvist - Hoffman
Clifford - de la Rose - MacEachern
Krug - Faulk
Dunn - Parayko
Mikkola - Bortuzzo