football, left reeling from Saturday's rioting in East Java in which 174 people were killed following Arema FC's defeat by Persebaya Surabaya. The sport is the country's most popular, with huge crowds turning out for bitter clashes between local rivals in the 18-team top-flight league, but the game has been blighted by hooliganism, heavy-handed policing and mismanagement. Home to nearly 275 million people, Indonesia has rarely been able to harness its potential and has failed to qualify for the World Cup since its one and only appearance in 1938, when the country was still known as the Dutch East Indies.