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: 18 years and still rollin #39; ALEX FERGUSON will take up the one-year rolling option on his contract and continue as Manchester United boss next season. Ferguson celebrates 18 years in charge at Old Trafford in the Manchester derby tomorrow.

Sports