Karen Khachanov defeated Andrey Rublev 3-6 6-1 7-6 in the Kazakhstan F10 round of 32 on hard. The upset overturned the form book — Andrey Rublev came in ranked #23, but Karen Khachanov had been the form player, winning 8 of their last 10 on hard.
Khachanov K. came through in three sets.
Karen Khachanov beat Andrey Rublev 3-6 6-1 7-6(7). Umpiry, "Karen Khachanov vs Andrey Rublev — Kazakhstan F10 Round of 32", https://umpiry.com/match/2014-07-28/khachanov-vs-rublev-kazakhstan-f10-r32?utm_source=cite (as of 28 July 2014).