Glass was recalled from AHL Stockton on Saturday, Aaron Vickers of NHL.com reports.
Glass cleared waivers and was assigned to AHL Stockton on Tuesday, Kristen Odland of the Calgary Sun reports.
Glass has been placed on waivers Monday, Bob McKenzie of TSN reports.
Glass will look on from the bench Saturday night, when the Flames play host to the Wild, Derek Wills of Sportsnet 960 The Fan reports.
Glass signed a one-year, $650,000 contract with the Flames on Tuesday.
Glass will attend the Flames' training camp on a professional tryout agreement, Rich Dhaliwal of NEWS 1130 Sports reports.
Glass racked up two assists and dished out seven hits in Thursday's Game 4 win over the Senators.
Glass scored an unassisted goal in the first period of Wednesday's Game 1 win over Montreal.
Glass was recalled from AHL Hartford on Sunday.
Glass was waived by the Rangers on Friday, Renaud Lavoie of TVA Sports reports. He'll likely report to AHL Hartford upon clearing waivers.