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: Report: Russian pairs skater suffered concussion in fall at Skate &lt;b&gt;...&lt;/b&gt; World champion pairs skater Tatiana Totmianina sustained a concussion but no broken bones in a fall during the free skating program at Skate America, the ITAR-Tass news agency quoted the head of Russia #39;s figure skating federation as saying 

Sports