A Canberra man has appeared in court after allegedly selling cocaine to two high-profile rugby league players after the Anzac Test on Friday night.

Kiwis captain Jesse Bromwich and fellow player Kevin Proctor allegedly joined Canberra man Adrian Mark Crowther, 45, outside the Cube nightclub in Canberra's city centre.

Police allegedly observed Crowther on CCTV video preparing a white powder on his phone, before handing it to the two men, who rolled up bank notes and consumed the substance.

According to court documents, by the time police arrived Bromwich and Proctor had left.

The men were in town to play the Anzac Test at Bruce Stadium against the Kangaroos.

While both players were named in court, neither has been charged with an offence.

A spokeswoman for ACT Policing was unable to say whether police planned to pursue charges against the players, but did confirm the matter was still being investigated.

NRL integrity unit notified

Responding to the allegations, along with the resignation of Cronulla Sharks chairman Damian Keogh over alleged drug possession, NRL chief executive Todd Greenberg said investigations were underway.

"The game has taken steps over many years to highlight the risks associated with the use of illicit drugs," he said.

"Ultimately individuals are accountable for their own choices.

"The League's capacity to eliminate the use of illicit drugs by its participants faces similar challenges to [those] faced by society."

The Melbourne Storm, Bromwich's NRL team, said it was aware of the allegations but could not comment further.

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The Gold Coast Titans, Proctor's team, confirmed the NRL integrity unit had been informed about the alleged incident and was investigating.

New Zealand Rugby League, which the players represented at the Anzac Test, raised serious concerns over the alleged incident.

"If the allegations are proven to be true New Zealand Rugby League will be taking action immediately," it said in a statement.

Crowther was also charged with possession of MDMA, and prosecutors noted the alleged crime was particularly brazen.

But the court also heard Crowther had no other criminal record.

Magistrate Bernadette Boss allowed bail, saying: "I can't just go around locking people up because of the fact he's done something once."

He will be back in court later this month.