The Ottawa Senators added forwards Connor Brown and Dylan Gambrell to the NHL's COVID-19 Protocol on Monday.
Head coach DJ Smith said both players will miss Tuesday's game against the Boston Bruins after they tested positive, but are being retested to ensure they were were not false positives.
Ottawa recalled forwards Scott Sabourin and Egor Sokolov from the Belleville Senators to fill their roster spots. Defenceman Erik Brannstrom was also recalled from Belleville on Sunday.
The Senators cancelled practice earlier on Monday for precautionary reasons, one day after defenceman Nick Holden and associate coach Jack Capuano were placed in the protocol on Sunday.
"It’s hard to pinpoint where it (outbreak) started or how it starts," Smith said Monday. "We're not going to put blame on people...we don't know where it started but it did. Now we have to deal with it and we'll get through it."
Senators forward Austin Watson was also placed in the protocol last week.
Ottawa is scheduled to visit the Bruins on Tuesday night.