Filip Kuba has been placed on injured reserve with a shoulder injury sustained Nov. 29 against Winnipeg and will be out 3-4 weeks. Matt Carkner, who has yet to play a regular-season game after requiring knee surgery in the preseason, will join the Senators in New Jersey on Thursday, but will not play. His earliest expected return will be against Vancouver on Saturday.
Washington coach Dale Hunter said Semin (shoulder) and defenseman Roman Hamrlik (lower-body injury) are "game-time decisions." Both skated with the team this morning, with Semin spending a second straight day on the top line.