The article is in Spanish. I tried to translate it in the better possible way.
Tennis coach hits his pupil at a tennis tournament
01 January 2005
MÉXICO, DF.- Tennis player Yun Jang Chang was crying hardly in a corner after losing her match at the International Cup of Casablanca by 6-3, 3-6, 6-0 againts american player Kristie Marcio, but that wasn't what caused her the crying. Instead, her tears dropped thanks to a slap in her face hit by her coach,Yung Liang.
But the abusing wouldn't consist just in the action. Some moments later, Liang took her by the neck with his right hand to shake her.
When the coach was asked by this behaviour, he just went straight ahead without saying anything, he just moved his head in a sign of denial. Liand was required to give an explanation hours later, but he didn't want to give any declarations nor even try to justify his behaviour.
The coach's fury came when her pupil, first seeded of the tournament, let blow a win that seemed near when she got to tie the match, which was dominated in the first set by Marcio. She started to hit very hard from the baseline moving Marcio from one side to another of the court. Marcio, who couldn't do anything, was showing signals of desperation by throwing her racket to the floor in many ocasions.
In the third and definitive set, everything seemed to be favourable to the chinese player, but then she returned to the court unfocused, hitting a lot of double-faults and inefficient services. That was used by the american player to go through the set without losing any game. Everything ended when Chan hit wide a crosscourt forehand.