From John McEnroe's notorious outburst against a line judge at Wimbledon to Nick Kyrgios feebly tapping a serve over the net in anger -- it's not usual to see tennis players lose their cool on the court.
원문출처 : http://www.cnn.com/2017/01/06/tennis/chris-evert-tennis-stars-under-pressure/index.html
원문출처 : http://www.cnn.com/2017/01/06/tennis/chris-evert-tennis-stars-under-pressure/index.html