When the New York Islanders acquired Bo Horvat from the Vancouver Canucks it came at a hefty cost. The deal sent a 1st round pick, Autu Raty and Anthony Beauvillier to Vancouver, and saw Bo Horvat shipped to New York in return. The deal seemed even more odd that it didn't come with an extension for Horvat.
Then news broke that the Canucks refused to let other teams speak to Horvat about an extension. This decision forced many teams out of the conversation for Horvat, given the price for a rental was prohibitive for many.
It's clear that the Canucks fan base feels that Lou crossed some lines during these negotiations. But will the NHL investigate this situation? The league appeared to ignore clear tampering over the summer, when players like Claude Giroux and Jack Campbell had deals announced hours before they were even allowed to speak to other teams.