The Chicago Blackhawks selected Hayes 24th overall in 2010 and had four years to sign him .
Hayes will follow previous NCAA stars such as Blake Wheeler and Justin Schultz and become a NHL unrestricted free agent before making his pro debut .
The Chicago Blackhawks selected Hayes 24th overall in 2010 and had four years to sign Hayes .
Hayes will follow previous NCAA stars such as Blake Wheeler and Justin Schultz and become a NHL unrestricted free agent before making his pro debut .