Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Federer sweeps past Hewitt Houston: Federer fatigue? Not as long as Roger Federer keeps dominating mens tennis in style. Rarely have an extended series of mismatches been more pleasing to the eye, and those few thousand fans who 

Sports