A monkey walks past a player during Asian Amateur Golf Tournament in Singapore, Oct. 2, 2011. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

Two monkeys keep guard on a fence during a Commonwealth Games in India, Sept. 29, 2010. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

A monkey examines a digital camera during a boxing tournament in Caracas, Venezuela, March 13, 2010. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

A monkey hands a baseball to actor Tyler Labine during a baseball game in San Diego, the United States, Sept. 27, 2012. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

A monkey rushes into a field during a cricket game in Sri Lanka, Aug. 14, 2015. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

Player Jelena Jankovic of Serbia poses for a photo with a monkey during the 2013 Sony Open Tennis in Florida, the United States, March 26, 2013. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

A monkey performs dunk during the first Human and Animal Sports Meeting in Harbin, capital of northeast China's Heilongjiang Province, Sept. 30, 2006. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)

A monkey rides a collie during a break of NBA regular season in Denver, the United States, Jan. 10, 2006. 2016 marks the Year of the Monkey in the Chinese calender. Clever monkeys often bring unexpected entertainment spirit to the sport arena. (Xinhua)