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: Radcliffe baffled by failure A tearful Paula Radcliffe has revealed she has no idea what went wrong in her failed bid for Olympic marathon gold. The Briton said fans deserved an explanation but was waiting for test results from a Monday 

Sports