Shane Warne has accused Ricky Ponting of jealousy following Ponting's criticism of Michael Clarke's commitment to the Australian cause.
Warne said his former captain "beats himself up" about being the only Aussie captain to lose three Ashes series, and said Ponting's revelations Clarke was not as committed to the team as he might have been when vice-captain was "ordinary".
The Aussie leg-spin legend also continued his verbal assault on Alastair Cook, labelling the England captain "boring" and saying he will cost his side the Ashes unless he shows more flair.
Warne and Ponting reportedly fell out on the 2005 Ashes tour and Warne caused a stir when he criticised Ponting's captaincy on Twitter during Australia's tour of India in 2010.
Now he has fanned the flames again, telling English media that Ponting was out of order airing his grievances.
"I know he beats himself up mercilessly about being the only Australian captain ever to lose three Ashes,' Warne told the Daily Mail.
"And I know Ricky made that horrific decision to put England in at Edgbaston in 2005. I don't want to be mean about Ricky - he's a good guy and he tried to do the best he could. But to bring up the stuff about 'Pup' - maybe there was a bit of jealousy, because Pup was batting so well and Ricky was not making any runs.
"The best captains keep stuff in the dressing room. No one ever finds out about it. So to hear all this in a book is pretty ordinary."
Turning his attention to the upcoming series, Warne repeated his criticism of Cook, labelling the England captain "boring" and lacking imagination.
Warne said unless Cook showed more flair then Australia will win their first Ashes series in four attempts.
"It's all about the brand and style of cricket you want to play and what you stand for as a captain," Warne told the English media.
"Cook can be negative, boring, not very imaginative, and still win and be happy. But I think Alastair Cook has to be more imaginative.
"I think if Australia play well and he continues to captain the way he does, England will lose the series."
Warne, a commentator with Sky Sports, was critical of England during the last Ashes series earlier this year even though the home side thrashed Australia 3-0.
However, the likes of England quick Stuart Broad dismissed his remarks because of his close relationship with Michael Clarke and the face he was working in an advisory capacity with the Aussie team.
"It's a PR game," Broad said. "I see Warne as working for Australia. We are not listening to what he says. It's like a big fight - all the trash talk that goes before it. We don't need to get involved in that."
But Warne was unrepentant, saying he was simply calling it as he saw it.
"If Michael Clarke did the same things, I'd say he was negative, but he's not. That's not the way he captains," Warne said.
"Cook lets the game drift. He waits for the game to come to him. I don't think he can captain the side like that.
"For me, Michael Clarke is the best captain in the world at the moment. He just has a lot of imagination."
Warne also expressed doubts over Joe Root's technique as an opener, saying "it could be crucifying him if he's got to face Ryan Harris, Peter Siddle and Mitchell Johnson on some fast, bouncy pitches".