India will today lock horns with arch rivals Pakistan in the Sultan Azlan Shah Cup hockey tournament at Ipoh in Malaysia. With a 2-3 defeat at the hands of South Korea in the opening match of the tournament, defending champions India cannot afford to lose if they wish to stay the champions. At present, India is third in the table with 7 points from 4 games while Pakistan is 4th with 6 points from 4 matches.In the last match, India defeated Malaysia 5-2.India had won the Azlan Shah Cup in 2009 and were joint champions with South Korea in 2010.