Calgary Flames
Assigned goaltender Tyler Moss to the Kansas City Blades of the International Hockey League.

Edmonton Oilers
Re-assigned right wing Maxim Spiridonov to Tallahassee of the East Coast Hockey League.

Montreal Canadiens
Returned right wing Oleg Petrov and center Matt Higgins to Quebec of the American Hockey League.

Nashville Predators
Signed forward Scott Walker to a contract extension

Recalled forward Mark Mowers from Milwaukee of the International Hockey League.

New York Islanders
Recalled left wing Josh Green from Lowell of the American Hockey League.

Ottawa Senators
Suspended center Alexei Yashin for the remainder of the season

Signed defenseman Bobby Dollas to a multi-year contract

Re-assigned defenseman Karel Rachunek to Grand Rapids of the International Hockey League.

Philadelphia Flyers
Loaned right wing Mark Greig to Philadelphia of the American Hockey League.

St. Louis Blues
Assigned defenseman Bryan Helmer to Worcester of the American Hockey League.