Kammala jumla mai zuwa: A shekara ta 2017, Sironen ya kammala karatun digiri zuwa kungiyar Tigers 'Intrust Super Premiership NSW. A zagaye na 25 na
A kakar NRL ta 2017, ya fara buga wasan farko na NRL don Tigers da North Queensland Cowboys. Ya yi kwangila tare da Tigers har zuwa ƙarshen 2018.