The United States lost the services of forward Jeff Halpern for the remainder of the IIHF World Championship.
Halpern, the American team's captain, suffered a badly torn ACL in the third period of Tuesday's 5-4 loss to Canada and will need reconstructive surgery.
Team USA will insert New York Rangers centre Brandon Dubinsky into the lineup in place of Halpern.
Also, the American squad will be adding Colorado Avalanche defenceman Jordan Leopold to their lineup.