Frederik Nielsen defeated Yan Bai 6-4 7-6 in the Korean Rep F3 round of 16 on hard.
Nielsen F. took it in straight sets.
Frederik Nielsen beat Yan Bai 6-4 7-6(3). Umpiry, "Frederik Nielsen vs Yan Bai — Korean Rep F3 Round of 16", https://umpiry.com/match/2009-04-20/bai-vs-nielsen-korean-rep-f3-r16?utm_source=cite (as of 20 April 2009).