Stalock appears to have been injured last night after being hit by Cizikas and Petr Mrazek was already out nursing an injury but was practicing today. Blackhawks already called up Arvid Soderblom last week and the only other prospect goalie they had with an NHL deal was Jaxson Stauber who is also injured. Wells was previously on an AHL deal, so they had to sign him to an NHL deal in order to potentially use him as a backup for tomorrow's game. Kinda similar to Dallas needing to sign Matthew Murray to an NHL deal yesterday so he could backup Wedgewood with Oettinger out.