Reimer was claimed off waivers by Buffalo on Wednesday from Anaheim, Elliotte Friedman of Sportsnet reports.
Reimer was waived by the Ducks on Tuesday, Elliotte Friedman of Sportsnet reports.
Reimer will be between the pipes for Sunday's road game versus New Jersey, according to Mike Morreale of NHL.com.
Reimer was claimed off waivers by the Ducks on Monday, Elliotte Friedman of Sportsnet reports.
Reimer was placed on waivers Sunday, per Chris Johnston of The Athletic.
Reimer inked a one-year, $1 million contract with Buffalo on Tuesday.
Reimer stopped 29 shots in regulation and overtime and all three shootout attempts he faced in Tuesday's 5-4 win over the Canadiens.
Reimer will defend the road net Tuesday against the Canadiens, according to Daniella Bruce of the Red Wings' official site.
Reimer made 32 saves in a 5-4 overtime win over Toronto on Saturday.
Reimer will patrol the road crease in Toronto on Saturday, Elliotte Friedman of Sportsnet reports.