The Chicago Blackhawks signed goaltender Michael Leighton to a one-year contract Monday.
The Blackhawks have agreed to deals with forward Jamal Mayers and defenseman Johnny Oduya.
Clarke MacArthur scored 3:16 into overtime and Ryan Miller made 25 saves to give the Sabres a 2-1 win over the Bruins.
A group led by former Panthers coach Doug MacLean has agreed to buy the Tampa Bay Lightning.
David Frost, the agent who represented jailed former NHL player Mike Danton, has been banned from attending games and events of the Central Junior A Hockey League.