
Korda, who produced a stunning third round upset of world No 1 Carlos Alcaraz on Sunday, exited the last 16 after falling in three sets to Landaluce, ranked 151st in the world, 3-6, 7-6 (8/6), 6-4.
The win marked another impressive victory for the 20-year-old Landaluce, who eliminated Russian 14th seed Karen Khachanov in the previous round.
Facing last year’s quarter-finalist, Landaluce saved a match point late in the second set, forcing Korda into a third set during which the American — hindered by an adductor injury — received on-court treatment twice.
Landaluce will face either American sixth seed Taylor Fritz or Czech 21st seed Jiri Lehecka for a place in the semifinals.