What is the fine-grained topic of the following text: Chennai (Tamil Nadu) [India], Mar 24 (ANI): Harbhajan Singh, who had a key role in Chennai Super Kings' seven-wicket win over Royal Challengers Bangalore in the first IPL match on Saturday, has said finger-spinners are still important and that all-rounder Ravindra Jadeja can be an X-factor in India's World Cup plans. Only return the topic.
Harbhajan Singh's thoughts on the importance of finger-spinners and Ravindra Jadeja's potential impact on India's World Cup plans.