Cricket Australia on Tuesday said it was not aware of any evidence implicating Australian players in match-fixing and slammed the credibility of the man who made the claims in a London court.

On Monday, the player agent at the center of the Pakistan spot-fixing allegations, Mazhar Majeed, named in recordings played in court several high-profile ex-Pakistan internationals as well as unnamed Australians as being involved in corruption.

Sutherland said Tuesday that "these sweeping statements unfairly malign Australian cricketers," but if there was any evidence of wrongdoing, Australian officials would investigate.

"These would appear to be baseless allegations," Sutherland added, saying that he would have been made aware by the International Cricket Council if Australians were involved in any match-fixing.

The recordings were made by the prosecution's chief witness Mazhar Mahmood, the undercover journalist who was working for the now-defunct British tabloid The News of the World. The recording were played at London's Southwark crown court on the fourth day of the trial.

Majeed accused Australian players of being the "biggest" match-fixers in world cricket, although he never backed his claim up with any evidence.

Majeed told Mahmood that Australian players would fix "brackets," a set period of a match on which gamblers bet, for example, on how many runs will be scored.

"The Australians, they are the biggest, they have 10 brackets a game," Majeed said on the tape played to the court.

Sutherland said Tuesday that the ICC attends all international matches with its corruption unit and "there is nothing I have heard to suggest that there are Australian players who are of interest to them.

"If there is any issue or there is any concern, we will investigate them, Sutherland added. "If we charge players and we find them guilty we will have no qualms about issuing a life sentence on players who are found guilty of match-fixing."

Australian Cricketers' Association chief executive Paul Marsh said Majeed was unreliable and his evidence should be considered in context.

"I don't think he's got a lot of credibility," Marsh told Australian Broadcasting Corp. radio. "I found it very interesting that he was prepared to name the names of some Pakistani players but no Australian players.

"Our players are paid very well, they're educated very well, and I think our guys understand the consequences of getting involved here in this space. It's just not in the Australian culture."

In London, former Pakistan captain Salman Butt and fast bowler Mohammed Asif are facing charges of conspiracy to cheat, and conspiracy to obtain and accept corrupt payments.

Butt, Asif and Pakistan teammate Mohammed Aamer are accused of conspiring with Majeed to bowl deliberate no-balls in the fourth Test against England at Lord's in August of last year.

Butt and Asif deny the charges. Majeed and Aamer are not required to appear in court.