"He is just too thin. He’s lost too much weight and he looks like he needs a rest to recovery from the viral attack," said former Australian skipper Bill Lawry .
"If he keeps going he will risk being of no use to himself or Australia and that could be the end of him," he warned.
"For his sake, it may be time for the selectors to just tell him to go away, not to play in the next Test, or for New South Wales or for anyone until he has regained weight and his strength, and is fit and keen and a weapon again."
"Maybe he should be rested for the remainder of this series, even the tour of South Africa, if they really want him fit and firing for the Ashes series in England," Lawry suggested.
"He’s in trouble. It’s not that he is not trying. He is busting a gut and that’s the problem," Lawry said.
"He isn’t physically robust enough to be at his best and he is running himself into the ground while the opposition knows he is not the bowler he was."