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: Red Sox add Wells to cast of characters The self-proclaimed  quot;bunch of idiots quot; at Fenway Park are getting a new ringleader. In a move sure to torment the Yankees, the Red Sox have reached agreement on a two-year contract with David Wells.

Sports