The performance, showed off by Youth Olympians, is part of a Youth Olympic Games program to encourage people to participate in sports.
Serena Williams, Russian world No 6 Maria Sharapova and Li Na, together with Novak Djokovic and Rafael Nadal are set to make the China Open the most star-studded in its 11-year history.
Barcelona and Real Madrid have again been the biggest spenders this offseason in the Spanish league, while defending champion Atletico Madrid has also had to rebuild.
Reigning champion Rafael Nadal pulled out of the US Open because of an injury for the second time in three years Monday, leaving Novak Djokovic and Roger Federer as the men to beat at the year's last Grand Slam tournament.
James Rodriguez scored in his Spanish debut as Real Madrid earned a 1-1 draw against Atletico Madrid in the first leg of the Super Cup on Tuesday.
The former NBA star announced that he will take the ALS Ice Bucket Challenge to improve awareness of the fight against amyotrophic lateral sclerosis.
For many Olympians who don't have a chance to compete in the Youth Olympic Games, there are ways to associate themselves with the fledgling event.
Cadet world champion Eleonora De Marchi of Italy was upset by South Korean Lee Sinhee in the women's epee fencing at the Nanjing 2014 Youth Olympic Games on Monday.
For Chinese table tennis star Fan Zhendong the Youth Olympics will be more likely a stepping-stone.
The International Olympic Committee wants to use the current Youth Olympic Games as a test model for a more sustainable approach to future Games' bidding processes and operations, said IOC president Thomas Bach.
Luis Suarez and Neymar played their first match since their memorable exits from the World Cup on Monday, with the Brazil star scoring two goals to help Barcelona rout Mexican champion Leon 6-0 in a preseason friendly at Camp Nou.
Dutch driver Max Verstappen is set to become the youngest driver ever in Formula 1 after signing for Red Bull Racing's Junior Team Scuderia Toro Rosso for the 2015 season on Monday.