Zaitsev (lower body) won't return to Tuesday's game versus the Bruins.
Zaitsev was injured in the first period of the contest. He joins Jacob Bernard-Docker (ankle), Erik Brannstrom (lower body) and Artem Zub (jaw) as ailing blueliners for the Senators. If Zaitsev can't play Thursday versus the Capitals, Ottawa may recall a blueliner.