WIMBLEDON, July, 5: Rafael Nadal was up near the Centre Court net when Nick Kyrgios smacked a booming forehand directly at the guy’s midsection — right at him, on purpose — and earned a lengthy staredown in return.

CINCINNATI, August 19: Top-seeded Spaniard Rafael Nadal defeated fellow countryman Albert Ramos-Vinolas in straight sets on Friday to set up a mouth-watering quarter-final against Australian Nick Kyrgios.