Sultan Azlan Shah Cup hockey tournament begins at Ipoh in Malaysia today. Defending champions India, who are battling with a spate of injuries and non-selection of two star players Sandeep Singh and Sardara Singh will seek a hat-trick of champion's title in the tournament. Seasoned striker Arjun Halappa will lead the Indian team. India will take on South Korea in their opening match today followed by a game against England on Friday.