Schwindt (lower body) is considered week-to-week, Danny Webster of the Las Vegas Review-Journal reports Tuesday.
Schwindt (lower body) won't play against St. Louis on Monday, Lou Korac of NHL.com reports.
Schwindt posted an assist in Saturday's 6-2 win over the Canadiens.
Schwindt notched two assists and went plus-3 in Monday's 5-0 win over the Flames.
Schwindt was claimed off waivers by the Golden Knights on Monday, Elliotte Friedman of Sportsnet reports.
Schwindt was placed on the waiver wire Sunday, Pat Steinberg of Sportsnet 960 The Fan reports.
Schwindt signed a one-year, two-way contract with the Flames on Wednesday.
Schwindt was demoted to the minors Friday.
Schwindt was summoned from AHL Calgary on Wednesday.
Schwindt was reassigned to AHL Calgary on Tuesday.