Juan Luis Tati Rascon defeated Alex Corretja 6-3 6-2 in the Spain 4 Masters 4 round of 16 on hard. The upset overturned the form book — Alex Corretja came in leading the head-to-head 1–0. Juan Luis Tati Rascon claimed a first win over Alex Corretja in two meetings, levelling the head-to-head at 1–1.
Tati Rascon J. took it in straight sets.
Hard: Tati Rascon J. leads 1–0 · Clay: Corretja A. leads 1–0
Juan Luis Tati Rascon beat Alex Corretja 6-3 6-2. Umpiry, "Juan Luis Tati Rascon vs Alex Corretja — Spain 4 Masters 4 Round of 16", https://umpiry.com/match/1991-04-22/corretja-vs-rascon-spain-4-masters-4-r16?utm_source=cite (as of 22 April 1991).