The NRL has been dealt its first off-field behavioural issue in Las Vegas, with Canberra forwards Morgan Smithies and Hudson Young reportedly clashing.

Raiders coach Ricky Stuart confirmed to multiple media outlets in Las Vegas that the club were looking into a matter between two players on the opening night of their camp.

According to reports, the two players became involved in an altercation with each other after a night out, when a hotel mix up left one of them without a room.

Hotel security were called and briefly removed the duo.

While reports also suggested there had initially been concerns about the involvement of a weapon, the item was later confirmed to have been an inflatable baseball bat.

Police did not become involved, and the pair were allowed to return to the hotel.

Neither of the duo are expected to be sent home, with both set to be named to face the Warriors in the NRL season opener at Allegiant Stadium this weekend.

“It was irresponsible behaviour, I’ve dealt with this and want to now go about preparing the team for Saturday,” Stuart told Nine Newspapers.

The clash is the first off-field behavioural problem to beset the NRL in Las Vegas, after a largely incident free first visit to the city last year.

On that trip, the main issue was a verbal altercation between the Sydney Roosters’ Spencer Leniu and Brisbane players in a hotel corridor, following Leniu’s racial slur against Bronco Ezra Mam.

That incident did not become physical, and hotel security were not called.

Clubs have largely given players free rein to enjoy Sin City, trusting them to behave and believing locking them in hotels is not the best preparation for games.