Pictures of the year 2013: Unexpected visitors on court

Updated: 2013-12-04 15:29

(icpress.cn)

Pictures of the year 2013: Unexpected visitors on court

A praying mantis sits on a wall at court level at Arthur Ashe Stadium as players practice before the men's semifinals of the 2013 U.S. Open tennis tournament, Saturday, Sept. 7, 2013, in New York. [Photo/icpress.cn]