The star at the centre of the spot-fixing scandal sought to hide behind the Pakistan High Commissioner's barmy claims that the News of the World fabricated evidence against him. Test captain Butt appeared at last Sunday's post-match press conference and tried to distance himself from the allegations he is involved in an illegal gambling syndicate.
But former skipper Raja said: "Salman Butt's claims are a joke, a big joke. "If you are implicated, you've got to come out straight away and say, 'I've not done this, I don't care what the allegations are, I'm not involved and that is the truth'.
"He has not done that, he has come across as a big liar. I am so heavily and thoroughly disappointed by Pakistan's captain.
"You look at match-fixing and the captain has to be crooked, they've got to be involved, along with some of the major players in the team, for it to happen.
"It all depends on the captain. The way it was told in the paper '10th over, sixth ball' it actually did happen. It's up to the captain to ensure the bowler is still operating in the 10th over.
"I thought Butt was intelligent enough to understand the importance of leading Pakistan and setting an example.
"This is going to hurt Pakistan cricket. We have become a laughing stock. These players have brought shame on Pakistan's history. They have been caught in the act. Nothing can detract from that fact."
It is alleged Butt coerced 18-year-old Mohammad Amir into bowling two no-balls during the Fourth Test with England. Mohammad Asif is also accused of intentionally over-stepping.
