Juan Martin del Potro defeated Rafael Nadal 5-7 6-4 7-6 in the Rio de Janeiro semi-final on clay. The upset overturned the form book — Rafael Nadal came in leading the head-to-head 8–5, defending last year's semi-final. Juan Martin del Potro narrowed the head-to-head to 8–6.
del Potro J. came through in three sets.
del Potro J. and Nadal R. faced 4 of the same opponents in the last 12 months. del Potro J. went 3–1 (75%) against them, Nadal R. 6–1 (86%). Results against comparable opponents are close (1 : 1 better-results split).
Only 4 common opponents — small sample, treat as indicative.
Clay: Nadal R. leads 2–1 · Hard: del Potro J. leads 5–3 · Grass: Nadal R. leads 2–0 · Carpet: Nadal R. leads 1–0