Melbourne: Australian spin legend Shane Warne said the axing of Usman Khawaja was harsh and a similar fate beckons Mike Hussey and Ricky Ponting if the Aussies lose the eagerly-awaited Test series against India.
"When you are losing and the senior players are not performing, that is when it gets difficult for them," Warne was quoted as saying by Daily Telegraph.
Warne said Khawaja was unlucky to be dropped.
"It is pretty tough on young Khawaja, you thought that he might have had 10 or 15 Tests and then you make a decision on him in all different things," he said.
"Unfortunately, when you lose a few Test matches, they look at your form and look at who will come in," he added.
Warne said his retirement was timed rightly and even Ponting and Hussey would know when it's time to go.
"I suppose when I retired my form was pretty good, my numbers still stacked up," said Warne, who exited after the 2007 Sydney Test against England having taken 23 wickets at 30 in his final series," he said.
"Mine was an enjoyment thing, time to do other things. I think for the senior players that are playing they will know when it is (time)," he added.
Warne backed new pick Ed Cowan and injury-prone Shaun Marsh to do well in the series.
"Ed Cowan is obviously in a bit of form and Shaun Marsh to me has always been a great talent. It's important for him and Michael Clarke and the selectors that he gets a long run at it," he said.
"Whatever training he is doing, they have to keep him on the park and perform rather than play a couple of games and be injured," he added.