Jamie Carragher has launched a scathing attack on Liverpool owners Tom Hicks and George Gillett, saying he has been sickened by their broken promises and profiteering.

Writing in his autobiography, Carragher accuses the Americans of buying the club solely to make a profit and says he is unhappy they have failed to keep their promises of building a new stadium and pledging money for transfers.

"For richer or poorer, we'd sold Liverpool to two ruthless businessmen who saw us as a money-making opportunity," Carragher writes in Carra: My Autobiography.

"They didn't buy Liverpool as an act of charity; they weren't intent on throwing away all the millions they'd earned over 50 years...They wanted to buy us because the planned stadium offered a chance to generate tons of cash and increase the value of the club.

"Think how many world-class players that £200million could have brought to the club. Instead if Gillett and Hicks did sell, they or their banks would make a huge profit.

"I felt ill thinking about it."

Carragher said the owners' worst mistake was claiming no debt would be put on the club's balance sheet - but the loans used to buy the club created annual interest payments of around £30m.

"Breaking this vow set the first alarm bells ringing, the embarrassing continual changing of the stadium plans was irritating too," added Carragher.

But the long-serving defender also had sympathy for the pair, saying Reds boss Rafa Benitez must take some of the blame for the turmoil that surrounded the club last season for publicly undermining the owners.

Following the 2007 Champions League final defeat to Milan, Benitez called on the Americans to invest more on strengthening the team and Carragher claims the Spaniard's outburst was the root of the infighting last term.

"These words sparked a chain reaction that brought problems into the open, almost cost (Benitez) his job a couple of months later, riled Liverpool's owners into an ill-fated meeting with Jurgen Klinsmann, and ended Hicks' and Gillett's honeymoon with The Kop," noted Carragher.

"I understood why the owners were unhappy with him too. They'd been undermined by Rafa and now they were undermining him.

"It was a political rather than football battle, and although the fans wanted to see it in black and white terms, with the owners the bad guys and Rafa their hero, I saw far more shades of grey."