Andrey Golubev defeated Di Wu 5-7 6-4 6-4 6-4 in the CHN vs KAZ round robin on hard.
Golubev A. came through in four sets.
Andrey Golubev beat Di Wu 5-7 6-4 6-4 6-4. Umpiry, "Andrey Golubev vs Di Wu — CHN vs KAZ Round Robin", https://umpiry.com/match/2010-05-07/golubev-vs-wu-chn-vs-kaz-rr?utm_source=cite (as of 7 May 2010).