Montreal Canadiens - Signed right wing Sebastian Collberg to a three-year contract; signed defenseman Magnus Nygren to a two-year contract.

Nashville Predators - Named Phil Housley assistant coach; fired associate coach Peter Horachek.

New York Islanders - Signed forward Chris Bruton to a one-year, two-way contract.

St. Louis Blues - Signed goaltender Niklas Lundstrom.