Count defenseman Duncan Keith and forwards Patrick Sharp and Viktor Stalberg as those in and ready for more hockey next month. But count Jonathan Toews and Patrick Kane out.

As it typically happens on clean-out days, injuries became a topic Wednesday at the United Center. Keith and Sharp are healthy and eager to represent Canada in the International Ice Hockey Federation World Championships in Finland, and so is Stalberg for Sweden.

Toews and Kane, though, will take the rest.

"I knew that when I came back that my head felt right," Toews said of the concussion that kept him out 22 games at the end of the regular season. "[But] I think there is still an element of uncertainty that you don't know if it's going to happen again or if it's going to come back.