Beijing: China's tennis chief has blamed Li Na's failure to build on her stunning 2011 French Open victory on a lack of mental strength following her rigid state-organised training, according to a domestic report.
Sun Jinfang said the world number eight, who crashed out of the US Open in the third round on Friday, was prone to breaking down on court, blaming this on the fact she had focused purely on sport from an early age.
"We have seen for a long time that Li Na can suddenly collapse. Why is this? Because athletes like her have not received a good education," China's official Xinhua news agency quoted Sun as saying in a televised interview.