What is the fine-grained topic of the following text: Organisers of the PSD Bank Meeting have confirmed that two-time world indoor champion Nia Ali will line up against European champion Cindy Roleder in the 60m hurdles at the IAAF World Indoor Tour meeting in Dusseldorf on 1 February. Only return the topic.
Nia Ali and Cindy Roleder competing in the 60m hurdles at the IAAF World Indoor Tour meeting in Dusseldorf.