NRL starâs big admission about drug use Michael Jennings scores a try in the 2013 NRL grand final. The former Sydney Roosters flyer this week in court admitted he took cocaine during post-game celebrations. Picture: Phil Hillyard News by Steve Zemek Premium Content Subscriber only Ex-NRL star Michael Jennings has admitted in court that he didnât tell the NRL the full extent of his cocaine use. The former State of Origin and Test outside back made the revelation in Sydneyâs Downing Centre District Court as he defended himself against allegations he abused and raped his ex-wife during their relationship.