Sri Lankan great Muttiah Muralitharan on Thursday sounded a warning to the teams ahead of next month's T20 World Cup, saying they will have to be careful against Wanindu Hasaranga as the mystery spinner would be a threat on Australian pitches. Hasaranga took nine wickets to power his team to the Asia Cup title win and Muralitharan said he would be one to watch out for during the T20 World Cup. "He's a great T20 bowler. Last 2-3 years, he's done really well. He's a young guy," Muralitharan told reporters in an interaction on the eve of the second edition of the Legends League Cricket.