Petr Korda beat Pete Sampras 3-6, 7-6(3), 3-6, 7-6(10), 13-11 in the Grand Slam Cup semi-final, 1993 on carpet in Munich, Germany
The unseeded Korda would go onto win the title, beating Michael Stich in the final. Top seed Sampras had recently lost the final of the Year End Championship to...