Kevin Shattenkirk was the big catch before the 2017 NHL Trade Deadline, thought to be the final piece of the puzzle for the Washington Capitals to win the Stanley Cup. Though the Capitals fell short, Shattenkirk is one of the best defensemen in the League, and one of many expected to become an unrestricted free agent.
Top free agent defensemen: Kevin Shattenkirk set to hit market
Karl Alzner, Andrei Markov also among those expected to be available July 1
© Norm Hall/Getty Images