Linus Ullmark likely has a groin strain, and the Senators should know much more after a scan Thursday.

Early reads off the video suggest the range is wide. It could be as minor as day-to-day, or serious enough to cost him multiple weeks.

Nobody can pin it down from the footage alone. The scan will go a long way toward setting a timeline.

He went down after a routine save in Wednesday's 5-1 win over Florida, stayed on the ice and struggled to get back up.

Groin strains are like a slow leak in a tire. Drive on it too soon and you're stuck on the shoulder for a month.

Rushing him back would be a mistake. Ottawa needs him healthy in March far more than it needs him back for a game next week.

That's easier said when the goalie in question owns a .945 save percentage.

Samuel Ersson and a Thursday back-to-back test Ottawa's depth

Samuel Ersson is the obvious fill-in. He's at .829 and still chasing his first win in four appearances.

The schedule doesn't help. San Jose visits Thursday on the second night of a back-to-back, with the Rangers coming in Saturday.

Travis Green might also need help from the AHL for a backup, depending on what the scan shows.

The Senators are 7-3-0 after beating Florida, a win that came with plenty of emotion and one big scare.

Ridly Greig set the tone in that game, getting the better of Sam Bennett after a clean check.

Ullmark carries an $8,250,000 cap hit, and Ottawa doesn't have that kind of insurance behind him.

If the news is bad, the goalie market gets interesting. Connor Hellebuyck's suspension window in Winnipeg closes Friday.

He isn't a cheap or simple fix, but a multi-week absence would force every option onto the table.

Day-to-day or multiple weeks? That one line on the scan report could shape Ottawa's next month.

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An early medical read on Linus Ullmark offers a possible timeline for the Senators

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