The Blues will begin training camp with 58 players on the roster.
Forwards: Nikita Alexandrov, Ivan Barbashev, Sammy Blais, Tyler Bozak, Cameron Darcy, Robby Fabbri, Robby Jackson, Dakota Joshua, Tanner Kaspick, Klim Kostin, Jordan Kyrou, Mathias LaFerriere, Nick Lappin, Mackenzie MacEachern, Jeremy Michel, Zach Nastasiuk, Jordan Nolan, Ryan Olsen, Ryan O'Reilly, David Perron, Austin Poganski, Evan Polei, Zach Sanford, Brayden Schenn, Jaden Schwartz, Alexander Steen, Nolan Stevens, Oskar Sundqvist, Vladimir Tarasenko, Robert Thomas, Alexey Toropchenko, Michael Vecchione, Nathan Walker, Keean Washkurak
Defense: Andreas Borgman, Robert Bortuzzo, Jay Bouwmeester, Jake Christiansen, Jake Dotchin, Vince Dunn, Joel Edmundson, Carl Gunnarsson, Joey Laleggia, Niko Mikkola, Rob O'Gara, Colton Parayko, Alex Pietrangelo, Derrick Pouliot, Mitch Reinke, Tyler Tucker, Jake Walman
Goalies: Jake Allen, Jordan Binnington, Colten Ellis, Evan Fitzpatrick, Joel Hofer, Ville Husso, Adam Wilcox