Ullmark (illness) will be between the home pipes versus Montreal on Saturday, per Renaud Lavoie of TVA Sports.

Despite a prior report, Ullmark is dealing with an illness and will not be available Monday against Team USA, according to Elliotte Friedman of Sportsnet.

Ullmark was the first goalie off the ice Monday, Fluto Shinzawa of The Athletic reports, indicating he'll be between the pipes for Sweden's clash with Team USA.

Ullmark will guard the visiting net in Florida on Saturday, TSN 1200 Ottawa reports.

Ullmark will guard the road goal versus the Lightning on Tuesday, per TSN 1200 Ottawa reports.

Ullmark (back) was activated from long-term injured reserve Sunday, per the NHL media site.

Ullmark (back) won't be available to serve as a backup for Thursday's home game against the Capitals, TSN 1200 Ottawa reports.

Ullmark (back) might be an option against either the Capitals or Wild on Thursday or Saturday, respectively, Bruce Garrioch of Postmedia reports.

Ullmark (back) was placed on long-term injured reserve Thursday, Julian McKenzie of The Athletic reports.

Ullmark (back) has been upgraded to day-to-day and will accompany the Senators on their three-game road trip that begins Sunday in New Jersey.