Australia will meet Pakistan in the World Twenty-20 semi-finals today at Saint Lucia after cruising to a simple seven-wicket victory over the West Indies. Maintaining their unbeaten record in the tournament, Michael Clarke's side passed the home nation's total of 105 with more than three overs to spare. Wicketkeeper Brad Haddin top-scored with 42 from 48 while David Warner made 25. In a bizarre aside, an Australian supporter draped in the national flag was injured when he fell over a railing in the dying overs.