Australian debutant Cameron Bancroft has words with Englishman Jonny Bairstow on day four of the first Ashes test.
Bancroft was at that stage playing for Western Australia and hadn't yet been chosen for Australia.
England go into the final day of the first Ashes 2017-18 Test with just 56 runs to defend on the final day with Australia having all their 10 wickets intact.
England has made no official comment on the incident.
England's Ashes campaign has already been rocked by off-field violence, with vice-captain Ben Stokes withdrawn from their squad following his arrest in Bristol on September 25 after a brawl outside a nightclub.
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European Central Bank chief Andrew Strauss was spotted looking dejected late on Sunday in Brisbane after Bairstow was questioned about the matter.
Claims have surfaced that Bairstow clashed with Australia opener Bancroft outside the Avenue Hotel at the start of the tour Down Under earlier this month.
"We felt we had them under pressure at the time", Ali said of his partnership with Bairstow. It has been nearly four years since Australia enjoyed an opening stand of over 100 runs in the fourth innings of a Test.
The ECB decided against imposing an alcohol ban on their players following the Stokes assault allegations, instead trusting players to behave themselves while on tour in Australia.
"I thought the first three days we played well and we were in the game and then today we let ourselves down with the bat especially".
However, England are now facing a full-blown disciplinary crisis. However, he has since gone on to make his Test debut, and has involved himself in quite a duel with the England keeper.
It is understood that Bancroft, who at that stage had not been selected for the Australian team, did not retaliate.
Stokes remains at home, unavailable for England's tour while he waits to find out if he will be charged by police.