Alexei Kovalev out with knee injury

OTTAWA -- Senators forward Alexei Kovalev will be sidelined for at least a week because of a knee injury.

The 37-year-old felt some discomfort after playing in back-to-back games over the weekend. He's been hampered by lingering pain this the season.

Senators coach Cory Clouston says his absence will provide an opportunity for another player to step up.

Kovalev has eight goals and 18 points in 42 games this season.

Ottawa plays at Boston on Tuesday and at the Islanders on Thursday. It returns home to face Calgary on Friday.