Andrew Symonds went missing from Australia's team hotel in an indiscretion described as the "final straw" resulting in the troubled cricketer being sent home in disgrace from England.

"Broadly speaking, he broke team rules. He broke team rules by going out when he wasn't suppose to, by ... leaving the hotel without advising where he had gone, all of that is in breach to team rules," Cricket Australia's general manger of public affairs Peter Young told Radio 3AW today.

"The concern we had is that it comes out of a long series of indiscretions and it was in breach of some very specific commitments he made before we approved that he he undertake this tour to England."

Symonds is believed to have had one or two drinks at a gathering with teammates to watch his beloved Queensland in the rugby league state of origin during the day on Wednesday, and to have breached personal behavioural terms imposed as part of a rehabilitation program prescribed by Cricket Australia.

The Australian team also attended a dinner hosted by the Professional Cricketers Association at the Royal Garden Hotel, Kensington, on Wednesday night, but it is not clear whether Symonds transgressed at the function.

Mr Young today said Symonds' track record meant the latest breaches were the "last straw".

"The indiscretion of itself was not major and if it had been any other player it would have been a disciplinary issue that would have happened and the world would have moved on without a hiccup," he said.

Australian cricketers must get security approval to leave their hotel.

Mr Young said in the lead-up to a world championship, the team needed to know the whereabouts of players and to be comfortable with what they were doing.

"I don't know what was going through his head but all of the team and team management and support staff know what the rules are and everybody else manages to get them right," he said.