Pablo Cuevas defeated Jack Sock 6-7 6-4 6-0 in the Madrid Masters round of 64 on clay.
Cuevas P. came through in three sets.
Cuevas P. and Sock J. faced 4 of the same opponents in the last 12 months. Cuevas P. went 2–3 (40%) against them, Sock J. 2–3 (40%). Results against comparable opponents are close (1 : 1 better-results split).
Only 4 common opponents — small sample, treat as indicative.