Beijing, September 29 (LaPresse) – "Confidence is very important in this sport. Now we'll see how I finish. Considering the number of tournaments I've played, winning so many matches is a great result for me and my team. Now we'll try to continue building. Today I was very aggressive from the baseline; I tried to come to the net more often, and it worked. But today it wasn't easy to try to change anything because we were both playing very fast. But overall, I'm satisfied with my performance. It's a great result to have reached the semifinals." Jannik Sinner said this after his victory over Fabian Marozsan in the quarterfinals of the China Open, the ATP 500 tournament underway in Beijing. The Italian will return to action tomorrow against Alex De Minaur, the world number eight, to earn a spot in the final. "We're playing in some pretty unique conditions; these courts are sometimes slow, especially with used balls. It won't be easy to beat him; he's one of the fastest players on tour, and it'll be a great challenge for me. He's improved a lot in recent months; he's playing great tennis," Sinner concluded. "We didn't follow him much today, but he's done very well in previous rounds. I expect a tough match, and hopefully it'll be a good one."