Na Li defeated Agnieszka Radwanska 6-2 6-1 in the Montreal quarter-final on hard. The upset overturned the form book — Agnieszka Radwanska came in leading the head-to-head 3–2. That levelled the head-to-head at 3–3.
Li N. took it in straight sets.
Li N. and Radwanska A. faced 16 of the same opponents in the last 12 months. Li N. went 15–8 (65%) against them, Radwanska A. 14–10 (58%). Results against comparable opponents are close (1 : 4 better-results split).
Hard: Li N. leads 2–0 · Clay: Radwanska A. leads 1–0 · Grass: Radwanska A. leads 2–1
Na Li beat Agnieszka Radwanska 6-2 6-1. Umpiry, "Na Li vs Agnieszka Radwanska — Montreal Quarter-final", https://umpiry.com/match/2012-08-11/li-vs-radwanska-montreal-qf?utm_source=cite (as of 11 August 2012).