BUFFALO, N.Y. (AP) — The Buffalo Sabres ruled out captain Rasmus Dahlin returning after he sustained an upper-body injury in the second period against the Florida Panthers on Monday.

The Sabres did not provide any further details in making the announcement. Dahlin's final shift lasted 18 seconds and ended 3:44 into the second period during a Sabres power play.

Dahlin left the ice after going down to one knee upon taking a shot from the slot off a faceoff in the Panthers zone. He collected the rebound along the side board before turning it over, and then headed immediately to the bench.

Dahlin scored his second goal of the season on the power play 15:55 into the first period.

Meantime, Panthers starting goalie Jacob Markstrom did not return for the start of the second period. He allowed two goals on nine shots in the opening 20 minutes and was replaced by Akira Schmid. The Panthers did not have an immediate update on Markstrom's status.

Florida acquired the 36-year-old Markstrom in a trade with New Jersey to be the starter after failing to re-sign Sergei Bobrovsky, who left Florida to sign with Toronto in free agency.

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