Updated: Penguins lose Greiss, Chorney, Martin and Comeau
The Penguins have already lost two of their unrestricted free agents to division rivals. Defenseman Taylor Chorney and goaltender Thomas Greiss have signed with the Washington Capitals and New York Islanders respectively. Chorney, who helped quite a bit down the stretch while the Penguins dealt with injuries to Kris Letang and Christian Ehrhoff, was held…