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: Raiders seeking to attack Oklahoma sooner When Texas Tech coach Mike Leach left Oklahoma coach Bob Stoops to accept the head position with the Red Raiders after the 1999 season, he might not have thought his old boss would hold a grudge.

Sports