Kammala jumla mai zuwa: A lokacin kakar wasa ta 2016-17 a ranar 20 ga Janairu, 2017, Blues ta sake kiran Copley daga Chicago Wolves na AHL. Ya fara aikinsa na NHL a ranar 21 ga Janairu a kan Winnipeg Jets, inda Blues ya rasa 5<unk>3. Bayan an dawo da shi zuwa Wolves, a ranar 27 ga Fabrairu, 2017, Copley ya koma Capitals a cikin musayar ranar ƙarshe tare da Kevin Shattenkirk a musayar Zach Sanford, Brad Malone, a
Zaɓin zagaye na farko na 2017, da zaɓin zagaye na biyu a cikin 2019. An kira Copley zuwa NHL a lokacin Capitals 2018 Stanley Cup playoffs gudu kuma ko da yake bai yi wasa ba a lokacin wasan, ya zauna tare da tawagar kamar yadda suka lashe gasar cin kofin Stanley ta 2018.