Shang Juncheng's progress brings revenge

Shang Juncheng and Kei Nishikori had faced each other once before in Atlanta last year, where Shang Juncheng lost to Kei Nishikori. Reflecting on his successful revenge this time, Shang Juncheng said, "Overall, my abilities have improved. Over the course of this year's matches, I’ve learned a few things."