For Yashasvi Jaiswal, the first Test against Sri Lanka at Galle, starting on Saturday, will present a familiar challenge in new surroundings. To find the magic formula between attack and defence, when to hold back and when to go full-throttle, a chemistry he has been trying to perfect. He has both the games, can seamlessly switch between attack and defence, but sometimes the dilemma has struck him and hastened his downfall. All those runs have come in India, but batting in Asia is also about adapting when the pitch changes. In Galle, knowing when to attack and when to show restraint could determine how long he stays at the crease.