I played an exhibition match with Wang Liqin [ranked sixth in the world]. It was just exhibition though; we were just trying to make [table tennis] look good, so it wasn't anything too serious. I had seen him before when I played in the World Championships in '09, but I never had the chance to play with him.
Cardio training is definitely one of the most important things in table tennis. Because everything happens so fast, you need to have quick reflexes and sometimes the points go on for a pretty long time, sometimes the points stretch on for what seems like forever. For the most part, I use long distance [running] to build up my endurance. Normally, I also do a lot of sprints and things like that.