Photo taken on July 8, 2019 shows a spectator dressed up with tennis court decorations at the 2019 Wimbledon Tennis Championships in London, Britain. (Xinhua/Han Yan)

Kids pass by the board of order of play during the eighth day of the 2019 Wimbledon Tennis Championships in London, Britain, July 9, 2019. (Xinhua/Han Yan)

The first group of spectators arrive during the eighth day of the 2019 Wimbledon Tennis Championships in London, Britain, July 9, 2019. (Xinhua/Han Yan)

The first group of spectators arrive during the eighth day of the 2019 Wimbledon Tennis Championships in London, Britain, July 9, 2019. (Xinhua/Han Yan)

People look at the board of order of play during the eighth day of the 2019 Wimbledon Tennis Championships in London, Britain, July 9, 2019. (Xinhua/Han Yan)

People sit on grass in front of the screen during the eighth day of the 2019 Wimbledon Tennis Championships in London, Britain, July 9, 2019. (Xinhua/Han Yan)