"They don't have many good quality fast bowlers right now. The only two that I can see and talk of, one is Lee and the other is Shoaib, and both in my mind are suspect," Roberts told The Indian Express.

"I am not the only one, most of the world thinks so. I have watched them. I think Lee is one of the best athletes in the Australian team, but one or two of his deliveries are suspect."

Lee and Akhtar both had come under the ICC scanner before being cleared, but Roberts was not convinced.

"You look at Shoaib from side-on, you look at him from the back, I wonder if hyperextension can be that and all that they say it is," said Roberts, a key figure of Clive Lloyd's fearsome pace quartet of the 1970s and early '80s.

Roberts, who retired in 1983 with 202 wickets in 47 Tests, lashed out at the ICC for "encouraging chucking" by allowing a bowler to bend his arm to 15 degrees.

"To be honest, I would say that the ICC is encouraging chucking in cricket," he said.

"By raising the limit to 15 degrees, you are encouraging people to bend their arms. That's all I have to say. It should remain what it is and umpires should be allowed to be free to do their work as they see it."

Roberts said Brian Lara's West Indians had made an encouraging start by beating fancied India 4-1 in a recent home one-day series, but should be more dominant in their victories.

"That is just a beginning. You have to show me that you can do it over a period of time. It's encouraging to win but I would like to see us being a little more dominant when we win," he said.