KARACHI (Agencies) - Pakistan speedster Umar Gul is set to kick up a storm as he has claimed that he saw English pacer James Anderson tamper with the ball last year during a Test match. The seasoned pacer, who is tipped to make a comeback to the national side for the coming series against Sri Lanka, said ball-tampering was not new in international cricket and it was being done through legal and illegal methods by many bowlers and teams. I saw Anderson do it last year when we went to England. Then in the Ashes series Stuart Broad was seen roughing up the ball with his boots. All these methods are part and parcel of the game to obtain reverse swing with the old ball, Gul said. Most of the bowlers tamper with the ball in international cricket, he added. Guls comments that are likely to ignite a new debate came when reporters asked him about the remarks made by Shoaib Akhtar in his controversial autobiography recently released in India. The retired fast bowler, in his book, has admitted to ball-tampering and claims it is common in Pakistans domestic cricket. Shoaib has called on the ICC to legalise ball-tampering. Gul said if Shoaib was saying he tampered with the ball he must have done it. I cant say much on that but yes many bowlers do it. When you use finger nails to scratch the ball it is illegal but when the fielders keep on throwing the ball on rough and dry pitches or the ball hits the advertising boards and sponsors signs, it is not illegal, he said. Gul said whether the ball was roughed up legally or illegally it remained an art to obtain reverse swing with it. Obtaining reverse swing is an art and must be recognized as one. But Gul didnt agree with Shoaibs suggestion to legalise ball tampering insisting this would spoil the beauty of the game. It should not be legalised because laws cant be changed on this and it should remain an art. Gul said Pakistani bowlers had always been accused of ball-tampering and it was nothing new.