Gagan ya fara bugawa Knights wasa a zagaye na biyar na
2017 kakar wasa a kan tsohon kulob dinsa Cronulla-Sutherland, yana ƙoƙari. Wannan zai zama bayyanarsa ta kaɗai ga Knights kamar yadda ba a ba shi sabon kwangila ba bayan 2017. A watan Nuwamba, ya sanya hannu kan kwangilar shekara 1 tare da Kudancin Sydney Rabbitohs farawa a 2018.