Shenzhen (Mandarin pronunciation: [ʂə́ntʂə̂n]) is a major city in the south of Southern China's Guangdong Province, situated immediately north of Hong Kong. The area became China's first—and one of the most successful—Special Economic Zones (SEZs). It currently also holds sub-provincial administrative status, with powers slightly less than a province.

Shenzhen's modern cityscape is the result of the vibrant economy made possible by rapid foreign investment since the institution of the policy of "reform and opening" establishment of the SEZ in the late 1979, before which it was only a small village. Both Chinese and foreign nationals have invested enormous amount of money in the Shenzhen SEZ. More than US$30 billion in foreign investment has gone into both foreign-owned and joint ventures, at first mainly in manufacturing but more recently in the service industries as well. Shenzhen is now reputedly considered as one of the fastest-growing cities in the world.

Being southern mainland China's major financial centre, Shenzhen is home to the Shenzhen Stock Exchange as well as the headquarters of numerous high-tech companies. Shenzhen is also the third-busiest container port in China, after Shanghai and Hong Kong.

Peng Shuai (born January 8, 1986, in Xiangtan) is a Chinese professional female tennis player. She won a gold medal at the 2010 Asian Games, defeating Akgul Amanmuradova in the final.

Peng is known for her stamina and plays with two hands on both sides and hits very flat. She has defeated many top 10 and top 5 players, including Anastasia Myskina, Elena Dementieva, Dinara Safina, Kim Clijsters, Martina Hingis, Amélie Mauresmo, Francesca Schiavone, Jelena Janković, Maria Sharapova, Agnieszka Radwańska, Li Na, Svetlana Kuznetsova, Nadia Petrova and Vera Zvonareva.

She has yet to win a WTA singles title, making four finals and many semifinals. As of May 2012, she is ranked inside the top 30 and is the 2nd ranked Chinese women's player, behind Li Na (out of 3 in the top 100).

Peng began playing at age eight when an uncle (a famous tennis coach in China and the only other family member who plays tennis) introduced her to the game. She favors hard courts and forehand (though her backhand is the better side). Her father Peng Jijun is a police officer and her mother is Zhang Bing. At age 13, Peng Shuai was submitted to a hospital for heart surgery, a situation which she explains in the "Impossible is Nothing" campaign from Adidas.