Martin Klizan defeated Steve Johnson 6-4 7-6 in the Tokyo round of 32 on hard. The upset overturned the form book — Steve Johnson came in leading the head-to-head 2–0, defending last year's quarter-final. Martin Klizan claimed a first win over Steve Johnson in three meetings, narrowing the head-to-head to 2–1.
Klizan M. took it in straight sets.
Martin Klizan beat Steve Johnson 6-4 7-6. Umpiry, "Martin Klizan vs Steve Johnson — Tokyo Round of 32", https://umpiry.com/match/2018-10-01/johnson-vs-klizan-tokyo-r32?utm_source=cite (as of 1 October 2018).