Sabalenka, Djokovic knocked out in first round of US Open mixed doubles

Aryna Sabalenka and Novak Djokovic were knocked out in the first round of the US Open mixed doubles after losing to doubles specialists Katerina Siniakova and Henry Patten 1-4, 4-2 (10-2). The top-seeded pair started strongly but failed to maintain their advantage. Patten and Siniakova advanced to t…