Latest on Matt Duchene, Ryan Miller and Mika Zibanejad in your NHL rumor mill.  Duchene, Avs corp could be under the microscope this summer. TSN: (via TODAY’S SLAPSHOT):  Darren Dreger reports Colorado Avalanche coach Patrick Roy’s harsh comments over center Matt Duchene celebrating his first 30-goal season during a recent 5-1 loss to the St. […]