Australian skipper Michael Clarke urged David Warner - who 'attacked' England batsman Joe Root at a bar - to watch his conduct.
"Although the punishment for David is quite harsh, that's the reality when you play for the Australian cricket team," Clarke said. Warner has been suspended from all forms of cricket till the first Ashes Test.
"This is not an IPL team, this is not state cricket, it's not county cricket, when you play for Australia there are standards you have to uphold," he added.
Clarke went on to add that Warner's behaviour was unacceptable.
"It's probably not the right time for me to sit here and be bragging about David's leadership qualities," Clarke said.
"I've said in the past that he does have a lot of leadership qualities, but right now as captain of this Australian team, he knows very clearly how I feel. His behaviour is unacceptable as an Australian cricketer."
The Australian captain, who has been so far laid low by injury in the Champions Trophy, praised Warner for owning up to his mistake.
"I respect the fact David has put his hand up and wants to move forward, has apologised to Joe, and acknowledged he has made a big mistake. He does deserve credit for putting his hand up."
"I've said for a long time it's not what you say, it's what you do, and this is an opportunity for Warner to show the world what he does rather than what he says. We'll be 100 per cent ready for the Ashes. There's no doubt about it," said Clarke.