Na Lae Han defeated Ying Zhang 6-4 6-4 in the Tianjin round of 32 on hard. The upset overturned the form book — Ying Zhang came in defending last year's round of 32.
Lae Han N. took it in straight sets.
Na Lae Han beat Ying Zhang 6-4 6-4. Umpiry, "Na Lae Han vs Ying Zhang — Tianjin Round of 32", https://umpiry.com/match/2017-07-18/han-vs-zhang-tianjin-r32?utm_source=cite (as of 18 July 2017).