On this surface, on clay, yes, he's the toughest player...

On this surface, on clay, yes, he's the toughest player because every point is very intense. He plays very intense. Also, on both sides he hits very hard. Until 4-2, all the games were very tight, but he ended up winning them because he had a better physical condition. He is like a beast, an animal, on the court. He's very strong and he's very well prepared.