A rugby fan adjusts his latex mask at the rugby sevens tournament in Hong Kong on March 29, 2014. (Photo by Philippe Lopez/AFP Photo)

Rugby fans attend the first day of the three-day Hong Kong Sevens rugby tournament, as part of the Sevens World Series, in Hong Kong March 28, 2014. (Photo by Bobby Yip/Reuters)

Rugby fans gesture during the second day match of the Hong Kong Sevens rugby tournament in Hong Kong, Saturday, March 29, 2014. (Photo by Kin Cheung/AP Photo)

A rugby fan walks in the south stand on the last day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 30, 2014. (Photo by Bobby Yip/Reuters)

A rugby fan wears a horse mask during the first day of the three-day Hong Kong Sevens rugby tournament, as part of the Sevens World Series, in Hong Kong March 28, 2014. (Photo by Bobby Yip/Reuters)

A rugby fan sings during the second day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 29, 2014. (Photo by Bobby Yip/Reuters)

Rugby fans wearing policemen costumes (C) drink beer at the rugby sevens tournament in Hong Kong on March 29, 2014. (Photo by Philippe Lopez/AFP Photo)

Rugby fans eat chicken wings on the last day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 30, 2014. (Photo by Bobby Yip/Reuters)

Rugby fans look on during the second day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 29, 2014. (Photo by Bobby Yip/Reuters)

A security guard stands beside rugby fans on the last day of the three-day Hong Kong Sevens rugby tournament, as part of the Sevens World Series, in Hong Kong March 30, 2014. (Photo by Bobby Yip/Reuters)

A rugby fan watches a match during the second day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 29, 2014. (Photo by Bobby Yip/Reuters)

Rugby fans attend the rugby sevens tournament in Hong Kong on March 29, 2014. (Photo by Philippe Lopez/AFP Photo)

A rugby fan poses (R) as his friend reacts during the first day of the three-day Hong Kong Sevens rugby tournament, as part of the Sevens World Series, in Hong Kong March 28, 2014. (Photo by Bobby Yip/Reuters)

A young rugby fan reacts as he watches a match during the second day of the three-day Hong Kong Sevens rugby tournament as part of the Sevens World Series in Hong Kong March 29, 2014. (Photo by Bobby Yip/Reuters)

A rugby fan waits for her friend on the last day of the three-day Hong Kong Sevens rugby tournament, as part of the Sevens World Series, in Hong Kong March 30, 2014. (Photo by Bobby Yip/Reuters)