Latest on the Flyers, Red Wings, Penguins and Senators in today’s NHL Rumor Mill.  Flyers free-agent options.   PHILLY.COM: Sam Carchidi lists St. Louis Blues center David Backes, Colorado Avalanche left wing Mikkel Boedker, Blues right wing Troy Brouwer, Boston Bruins right wing Loui Eriksson, Chicago Blackhawks left winger Andrew Ladd, Los Angeles Kings LW […]