Kyrou was placed on waivers by the Senators on Sunday, Bruce Garrioch of Postmedia reports.
Kyrou wasn't extended a qualifying offer from the Flyers during the offseason, but he signed a one-year, two-way contract with Ottawa a few days later. He'll be left off the Senators' Opening Night roster and should head to the minors if he clears waivers. He generated 10 goals, 24 assists and 16 PIM across 55 regular-season appearances with AHL Lehigh Valley last year.