Viktor Troicki defeated Igor Andreev 6-3 6-1 in the Halle round of 16 on grass. The result followed the form book — Viktor Troicki came in defending last year's round of 16.
Troicki V. took it in straight sets.
Troicki V. and Andreev I. faced 2 of the same opponents in the last 12 months. Troicki V. went 1–1 (50%) against them, Andreev I. 2–0 (100%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.
Viktor Troicki beat Igor Andreev 6-3 6-1. Umpiry, "Viktor Troicki vs Igor Andreev — Halle Round of 16", https://umpiry.com/match/2011-06-06/andreev-vs-troicki-halle-r16?utm_source=cite (as of 6 June 2011).