Shane Warne's family pleaded to be left alone as he started preparing for his drugs hearing.

Warne's brother Jason, who manages the leg spinner, said no-one in the family could comment further on the controversy.

The cricketer returned to Melbourne last night from the World Cup to prepare his defence and met for several hours with lawyer Ian McCubbin.

Warne is awaiting the result of his B sample urine test, which could be known tomorrow and is also likely to return positive for a banned diuretic.

He will probably front an Australian Cricket Board (ACB) anti-doping committee late next week.

Jason and Shane's mother Brigitte might give evidence, with the cricketer confirming last night that a pill provided by his mum led to the positive test result.

"We understand there is a lot of public interest in this story, including Shane and our mum," Jason said in the statement.

"We, Shane and I, are always very open and happy to talk to media.

"But at this stage, my family and I cannot make any further comment as we do not want to influence or compromise the hearing which is coming up in any way.

"My mum obviously cannot comment for the same reason - she is obviously upset about the whole situation and we ask you to respect her privacy at this tough time.

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