Australian bowling legend Dennis Lillee says he is impressed by Zaheer Khan's bowling and finds nothing wrong with it.

"I have not seen any mistake in his bowling. Today he bowled only half a dozen balls. Before the end of this week, we will analyze video clippings of his bowling, including his action, and then advice him on improvements," he said at the MRF Pace Academy in Chennai.

"Khan is bowling at 140 to 150 mph speed now. Very few in the world bowl at this speed. Perhaps he is only one level below Brett Lee's speed. In the olden days, bowlers like Jeff Thompson, Michael Holding, Andy Roberts were termed as 'express'. Khan is also excellent."

Asked whether Zaheer will be able to take over the mantle of lead bowler from Srinath, the former speedster said, "Absolutely!

"For a young man like Khan, who is fresh in mind and body, it will be easier to handle competition at the top level. What I have seen of him in the last four years makes me feel that he has the potential to handle any situation. However, it is all up to him and no one can do the work for him."