Alcaraz-Raducanu is a US Open mixed doubles entry. So are Osaka-Kyrgios, Keys-Tiafoe, Swiatek-Ruud

Imagine Carlos Alcaraz and Emma Raducanu competing together for a Grand Slam trophy. How about Madison Keys and Frances Tiafoe as a duo? Iga Swiatek alongside Casper Ruud? Or Naomi Osaka with Nick Kyrgios?