The troubled NRL career of Brisbane flyer James Roberts’ is in jeopardy with reports he was involved in a drunken incident on the weekend.

The NRL integrity unit was advised by the Broncos on Tuesday of an alleged incident at a Brisbane hotel on Sunday.

An NRL spokesman told AAP the Broncos will now investigate the matter and report back to the integrity unit.

It’s reported Roberts became abusive when refused service at the Normanby Hotel just outside Brisbane’s CBD.

The Courier-Mail claims Roberts was placed in a headlock by bouncers after an altercation with a female staff member and then lost consciousness.

An ambulance was called, the newspaper claims, but Roberts was awake again by the time it arrived and refused treatment.

Roberts has a history of off-field indiscretions, having been sacked by Penrith and South Sydney over behaviour-related issues.

The Rabbitohs released Roberts in 2011 after breaches of his playing contract including smashing a taxi window and he was cut by the Panthers in March 2014 for off-field misbehaviour.

He was thrown a lifeline by Gold Coast later in 2014 and appeared to have turned his career around, becoming one of the Titans’ best players before a bungled contract resulted in him leaving to join Brisbane for the 2016 campaign.

The Broncos have made no comment on the incident and it’s unclear if Roberts will be available for Thursday’s clash with fourth-placed Canterbury at Suncorp Stadium.