Yao Ming has retired. Liu Xiang has an injured Achilles tendon and his future is up in the air, so who will be the next sporting superstar from Shanghai?

According to the Shanghai Municipal Sports Bureau, he or she may be among 3,000 talented youngsters the city has chosen to develop their skills.

The birthplace of former NBA center Yao and star hurdler Liu is building a database that will comprise 3,000 children - aged between 10 and 12 - who have great sporting potential.