NEW DELHI (Agencies) - Retired Sri Lankan spin wizard Muttiah Muralitharan feels his former team-mate Hashan Tillakaratne should either furnish proof of match-fixing by the country's cricketers or stop making such allegations as he might just end up getting sued. "I don't know why he has said this. If somebody is making such claims, he should first give enough proof to support them otherwise someone can sue him," Muralitharan said. At a television chat show last week Tillakaratne said match-fixing existed in Sri Lankan cricket since 1992 and he would reveal the names soon. He expressed reservations about the team selection for the WC. On being asked whether he had been approached by any bookie during his career, Muralitharan said never. "In any case I will tell this to ICC's anti corruption unit only. There is a code and all the players follow that," said the veteran. He also rejected suggestions that Tillakaratne's allegations have tarnished the image of Sri Lankan cricket. "Hashan has made allegations and only he is answerable for that. I don't know what to say. These are mere allegations which have not been proved yet," he said.