Andreas Seppi defeated Diego Schwartzman 7-6 6-4 in the Sydney semi-final on hard. The upset overturned the form book — Diego Schwartzman came in defending last year's round of 16.
Seppi A. took it in straight sets.
Seppi A. and Schwartzman D. faced 7 of the same opponents in the last 12 months. Seppi A. went 3–6 (33%) against them, Schwartzman D. 5–3 (63%). Schwartzman D. came out better against 3 of 7 comparable opponents, Seppi A. against 1.
Andreas Seppi beat Diego Schwartzman 7-6 6-4. Umpiry, "Andreas Seppi vs Diego Schwartzman — Sydney Semi-final", https://umpiry.com/match/2019-01-07/schwartzman-vs-seppi-sydney-sf?utm_source=cite (as of 7 January 2019).