Hayton scored a goal on three shots in Saturday's 4-2 loss to the Senators.
DeSimone was in the lineup for the third straight game in Saturday's 4-2 loss to the Senators.
Biber was assigned to AHL Tucson on Sunday.
Vejmelka stopped 17 of 20 shots in Saturday's 4-2 loss to the Senators. Ottawa's fourth goal was an empty-netter.
Keller scored a goal on six shots and added an assist in Saturday's 4-2 loss to the Senators.
Cooley scored three goals, two on the power play, and added a power-play assist in Thursday's 5-4 overtime loss to the Canadiens.
Cossa turned aside 30 shots in Thursday's 5-4 overtime loss to Montreal.
Schmidt (upper body) won't return to Thursday's game versus the Canadiens.
Yamamoto (upper body) won't play Thursday versus the Canadiens.