A dolphin takes part in an aquatic football match at the Hefei Aquarium in Hefei, capital of east China's Anhui province, July 8, 2010. Eight dolphins of the aquarium were named after famous footballers and trained to perform aquatic football for tourists during the 2010 FIFA World Cup. (Xinhua/Ma Qibing)

A dolphin receives training before an aquatic football match at the Hefei Aquarium in Hefei, capital of east China's Anhui province, July 8, 2010. Eight dolphins of the aquarium were named after famous footballers and trained to perform aquatic football for tourists during the 2010 FIFA World Cup. (Xinhua)