Ivo Karlovic defeated Jack Sock 7-6 6-7 6-3 in the Memphis quarter-final on hard. The result followed the form book — Ivo Karlovic came in leading the head-to-head 1–0. Ivo Karlovic extended the head-to-head to 2–0.
Karlovic I. came through in three sets.
Ivo Karlovic beat Jack Sock 7-6(4) 6-7(3) 6-3. Umpiry, "Ivo Karlovic vs Jack Sock — Memphis Quarter-final", https://umpiry.com/match/2014-02-14/karlovic-vs-sock-memphis-qf?utm_source=cite (as of 14 February 2014).