Like Matt Cooke did in 2010, Tom Wilson could end up altering the NHL rulebook if he keeps knocking out opponents. Will the league eventually ban all forms of head contact? Buy our special Money & Power edition here [https://bit.ly/2vOYhnH]. Image [https://thehockeynews.com/.image/c_fit,h_600,w_600/MTg1MDUxMDQ4NTgzODk4NDU3/90_wilson_tom.jpg]